1
AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 15,JULY 2, 2001
REGISTRATION NO. ___-_____
================================================================================
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

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FORM S-3
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

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NEOTHERAPEUTICS, INC.
(Exact Name of Registrant as Specified in Its Charter)

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DELAWARE 93-079187
(State or Other Jurisdiction of (I.R.S. Employer
Incorporation or Organization) Identification No.)

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157 TECHNOLOGY DRIVE
IRVINE, CALIFORNIA 92618
(949) 788-6700

(Address, Including Zip Code and Telephone Number,
Including Area Code, of Registrant's Principal Executive Offices)

------------------------------

ALVIN J. GLASKY, PH.D.
CHIEF EXECUTIVE OFFICER
157 TECHNOLOGY DRIVE
IRVINE, CALIFORNIA 92618
(949) 788-6700
(Name, Address, Including Zip Code and Telephone Number,
Including Area Code, of Agent for Service)

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Copies to:
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Alan W. Pettis, Esq.
Latham & Watkins
650 Town Center Drive, Twentieth Floor
Costa Mesa, California 92626
(714) 540-1235

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APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon
as practicalFrom
time to time after the effective date of this Registration Statement becomes effective.as
determined by market conditions.

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If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

If any of the securities being registered on this form are to be offered
on a delayed or continuous basis pursuant to Rule 415 under the Securities Act
of 1933, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box. [X][X]

If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement of the same offering. [ ]

If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]

If delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box. [ ]

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CALCULATION OF REGISTRATION FEE

- ----------------------------------------------------------------------------------------------
PROPOSED MAXIMUM
AGGREGATE
AMOUNT TO PROPOSED MAXIMUM PROPOSED MAXIMUMBE OFFERING AMOUNT OF
TITLE OF SECURITIES BE OFFERING PRICE AGGREGATE REGISTRATION
TO BE REGISTERED REGISTERED(1) PER SHARE OFFERINGREGISTERED (1) PRICE (2) REGISTRATION FEE
------------------- -------------- ---------------- ---------------- -------------- ----------------------------------------------------------------------------------------------

Common Stock, 900,000 shares $4.85(2) $4,365,500 $1,091.25
Total 900,000 $4,365,500 $1,091.25$.001 par value per share (2) $8,400,000 $8,400,000 $2,100 (3)
- ----------------------------------------------------------------------------------------------

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(1) Subject to footnote (2), there are being registered hereunder shares of
Common Stock as may be sold, from time to time, by NeoTherapeutics, Inc
through an underwriter.

(2) In no event will the eventaggregate maximum offering price of a stock split, stock dividend, or similar transaction
involving the Company's common stock, in orderall securities
registered under this Registration Statement exceed $8,400,000.

(3) Calculated pursuant to prevent dilution, the
number of shares registered shall automatically be increased to cover
the additional shares in accordance with Rule 416(a) under the
Securities Act.

(2) Estimated solely for the purpose of calculating the amount457(o) of the registration fee in accordance with Rule 457(c)rules and regulations under
the Securities Act of 1933, based on the average of the high and low sales prices of the
Registrant's common stock on the Nasdaq Stock Market on May 10, 2001.as amended.

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THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.

================================================================================

Subject To Completion, dated May 15,SUBJECT TO COMPLETION, DATED JULY 2, 2001

INFORMATION CONTAINED HEREININ THIS PROSPECTUS IS SUBJECT TO COMPLETION OR AMENDMENT.
A REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.

PROSPECTUS

UP TO 900,000 SHARES$8,400,000

OF
NEOTHERAPEUTICS, INC.
COMMON STOCKCommon Stock

We may from time to time offer shares of our common stock having a
maximum aggregate public offering price of $8,400,000. The securities will be
offered through Cantor Fitzgerald & Co. as underwriter as part of a Controlled
Equity Offering, or CEO(sm). Upon agreement between us and Cantor Fitzgerald to
sell securities on certain terms, Cantor Fitzgerald will use its commercially
reasonable efforts to sell the securities up to the amount agreed upon, but will
not be required to sell any specific number or dollar amount of securities. The
net proceeds from the sale will be the aggregate sales price at which the
securities were sold after deduction for Cantor Fitzgerald's 4%
commission/discount on the aggregate sales price of the securities. Additional
information on the CEO(sm) arrangement is set forth in the prospectus.

Our common stock is traded on the Nasdaq National Market under the
symbol "NEOT."

On May 14, 2001, the closing price of our common stock was $5.00.

This prospectus relates to the sale of up to 900,000 shares of our
common stock by Montrose Investments Ltd. and Strong River Investments, Ltd. We
will not receive any of the proceeds from the sale of these shares.----------------------

INVESTING IN OUR COMMON STOCK INVOLVES A HIGH DEGREE OF RISK. SEE "RISK
FACTORS" BEGINNING ON PAGE 13.

----------------------

Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or passed upon the
accuracy or adequacy of the prospectus. Any representation to the contrary is a
criminal offense.

----------------------

The date of this prospectus is MayTHE DATE OF THIS PROSPECTUS IS JULY ___, 20012001.

NO DEALER, SALESPERSON OR OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE
ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS, AND IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE COMPANYNEOTHERAPEUTICS, INC. OR ANY UNDERWRITER. THIS PROSPECTUS DOES NOT CONSTITUTE
AN OFFER OR SOLICITATION BY ANYONE IN ANY JURISDICTION IN WHICH SUCH OFFER OR
SOLICITATION IS NOT AUTHORIZED OR IN WHICH THE PERSON MAKING SUCH OFFER IS NOT
QUALIFIED TO DO SO OR TO ANYONE TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR
SOLICITATION. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCE, CREATE ANY IMPLICATION THAT THERE HAS
NOT BEEN ANY CHANGE IN THE AFFAIRS OF THE COMPANYNEOTHERAPEUTICS SINCE THE DATE HEREOF.

TABLE OF CONTENTS

PAGE
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FORWARD-LOOKING STATEMENTS.................................................1

WHERE YOU CAN FIND MORE INFORMATION........................................1

ABOUT NEOTHERAPEUTICS..................................................................... 1NEOTHERAPEUTICS......................................................3

RISK FACTORS.............................................................................. 1

FORWARD-LOOKING STATEMENTS................................................................ 8

ISSUANCE OF COMMON STOCK TO THE SELLING STOCKHOLDERS...................................... 8FACTORS...............................................................3

USE OF PROCEEDS........................................................................... 8

SELLING STOCKHOLDERS...................................................................... 9PROCEEDS...........................................................11

PLAN OF DISTRIBUTION...................................................................... 9DISTRIBUTION......................................................11

VALIDITY OF COMMON STOCK.................................................................. 11

EXPERTS .................................................................................. 11common stock..................................................13

EXPERTS.................................................................. 13

LIMITATION ON LIABILITY AND DISCLOSURE OF COMMISSION POSITION ON
INDEMNIFICATION FOR SECURITIES ACT LIABILITIES.................................... 11

WHERE YOU CAN FIND MORE INFORMATION....................................................... 11LIABILITIES......................13

FORWARD-LOOKING STATEMENTS

This prospectus and the documents incorporated by reference into this
prospectus contain forward-looking statements that are based on current
expectations, estimates and projections about our industry, management's
beliefs, and assumptions made by management. Words such as "anticipates,"
"expects," "intends," "plans," "believes," "seeks," "estimates," and variations
of such words and similar expressions are intended to identify such
forward-looking statements. These statements are not guarantees of future
performance and are subject to certain risks, uncertainties and assumptions that
are difficult to predict; therefore, actual results may differ materially from
those expressed or forecasted in any forward-looking statements. The risks and
uncertainties include those noted in "Risk Factors" above and in the documents
incorporated by reference.

We undertake no obligation to update publicly any forward-looking
statements, whether as a result of new information, future events or otherwise,
except to the extent that we are required to do so by law. We also may make
additional disclosures in our Annual Report on Form 10-K, Quarterly Reports on
Form 10-Q and Current Reports on Form 8-K that we may file from time to time
with the Securities and Exchange Commission. Please also note that we provide a
cautionary discussion of risks and uncertainties under the section entitled
"Risk Factors" in our Annual Report on Form 10-K. These are factors that we
think could cause our actual results to differ materially from expected results.
Other factors besides those listed here could also adversely affect us. This
discussion is provided as permitted by the Private Securities Litigation Reform
Act of 1995.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and special reports, proxy statements and
other information with the SEC. You may read and copy any document we file at
the SEC's public reference room at 450 Fifth Street, N.W., Washington, D.C.,
20549, and in the SEC's public reference rooms in New York, and Chicago. Please
call the SEC at 1-800-SEC-0330 for further information on the public reference
rooms. Our SEC filings are also available to the public at the SEC's web site at
http://www.sec.gov.

The SEC allows us to "incorporate by reference" the information we file
with them which means that we can disclose important information to you by
referring you to those documents instead of having to repeat the information in
this prospectus. The information incorporated by reference is considered to be
part of this prospectus, and later information that we file with the SEC will
automatically update and supersede this information. We incorporate by reference
the documents listed below and any future filings made with the SEC under
Sections 13(a), 13(c), 14, or 15(d) of the Securities Exchange Act of 1934 until
the selling stockholders sell all the shares:

- Our annual report on Form 10-K for the fiscal year ended
December 31, 2000, as amended by Form 10-K/A filed on April 25,
2001;

- Our quarterly report on Form 10-Q for the quarter ended March
31, 2001, filed on May 14, 2001;

- Our current reports on Form 8-K filed on February 16, 2001,
March 14, 2001 and May 21, 2001;

- Our definitive proxy statement filed on April 30, 2001, pursuant
to Section 14 of the Exchange Act in connection with our 2001
Annual Meeting of Stockholders; and

- The description of our common stock contained in the
Registration of Securities of Certain Successor Issuers filed
pursuant to Section 12(g) of the Exchange Act on Form 8-B on
June 27, 1997, including any amendment or reports filed for the
purpose of updating such description.

You can request a copy of these filings, at no cost, by writing or
telephoning us at the following address:

NeoTherapeutics, Inc.
Attn: Investor Relations
157 Technology Drive
Irvine, California 92618
(949) 788-6700

You should rely only on the information contained in this prospectus or
any supplement and in the documents incorporated by reference. We have not
authorized anyone else to provide you with different information. The selling
stockholders will not make an offer of these shares in any state where the offer
is not permitted. You should not assume that the information in this prospectus
or any supplement or in the documents incorporated by reference is accurate on
any date other than the date on the front of those documents.

This prospectus is part of a registration statement we filed with the
SEC (Registration No. ___-_____). That registration statement and the exhibits
filed along with the registration statement contain more information about the
shares sold by the selling stockholders. Because information about contracts
referred to in this prospectus is not always complete, you should read the full
contracts which are filed as exhibits to the registration statement. You may
read and copy the full registration statement and its exhibits at the SEC's
public reference rooms or their web site.

ABOUT NEOTHERAPEUTICS

NeoTherapeutics, Inc. is a development stage biopharmaceutical company
engaged in the discovery and development of novel therapeutic drugs intended to
treat neurological diseases and conditions, such as memory deficits associated
with Alzheimer's disease and aging, spinal cord injuries, Parkinson's disease,
and other neurodegenerativedegenerative diseases that affect the nervous system and psychiatric
diseases. We have also recently become engaged in research involving functional
genomics, or the study of how genes function in the body, and the development of
oncology drugs.drugs for the treatment of cancer. Our lead product candidate, Neotrofin(TM)
(AIT-082,(also known as AIT-082 or leteprinim potassium), and other compounds under
development, are based on our patented technology. This technology uses small
synthetic molecules to create non-toxic compounds, intended to be administered
orally or by injection, that are capable of passing through the blood-brain
barrier, which is a layer of cells which prevents some molecules that may be
harmful from entering the brain, to rapidly act upon specific target cells in
specific locations in the central nervous system, including the brain. Animal
and laboratory tests have shown that Neotrofin(TM) appears to selectively
increase the production of certain neurotrophic factors, a type of large protein
involved in nerve cell proliferation, differential and survival, in selected
areas of the brain and in the spinal cord. These neurotrophic factors regulate
nerve cell growth and function. Our technology has been developed to capitalize
on the beneficial effects of these proteins, which have been widely acknowledged
to be closely involved in the early formation and differentiation of the central
nervous system. We believe that Neotrofin(TM) could have therapeutic and
regenerative effects. We have observed no serious negative side effects in
patients receiving Neotrofin(TM) in our clinical trials, however, patients have
reported experiencing fatigue, headache, nausea, confusion and depression at
rates consistent with those normally seen in the elderly Alzheimer's disease
test population. NeoGene Technologies, Inc., a subsidiary of NeoTherapeutics,
Inc., is engaged in functional genemicsgenomics research. On November 16, 2000, we
formed another subsidiary, NeoOncoRx, Inc., for the purpose of in-licensing
anti-cancer compounds which are in the clinical trial stages of development.

We currently have no marketable products, and do not expect to have any
products commercially available for at least two years, if at all. We have
incurred substantial losses since our inception, and expect our losses to
continue for at least the next several years. The pharmaceutical marketplace in
which we operate is highly competitive, and includes many large,
well-established companies pursuing treatments for Alzheimer's disease and some
of the other applications we are pursuing. See "Risk Factors" below.

We were incorporated in Colorado in December 1987 and reincorporated in
Delaware in June 1997. Our executive offices are located at 157 Technology
Drive, Irvine, California 92618. Our telephone number is (949) 788-6700. Our web
site address is www.neotherapeutics.com. Information contained in our web site
does not constitute part of this prospectus.

RISK FACTORS

Your investment in our common stock involves a high degree of risk. You
should consider the risks described below and the other information contained in
this prospectus carefully before deciding to invest in our common stock. If any
of the following risks actually occur, our business, financial condition and
operating results would be harmed. As a result, the trading price of our common
stock could decline, and you could lose a part or all of your investment.

OUR LOSSES WILL CONTINUE TO INCREASE AS WE EXPAND OUR DEVELOPMENT EFFORTS, AND
OUR EFFORTS MAY NEVER RESULT IN PROFITABILITY.

Our cumulative losses during the period from our inception in 1987
through DecemberMarch 31, 20002001 were approximately $96.2$101.7 million, almost all of which
consisted of research and development and general and administrative expenses.
We lost approximately $11.6 million in 1998, $26.0 million in 1999,
and
approximately $46.4 million in 2000.2000 and approximately $5.5 million in the three
months ended March 31, 2001. We expect our losses to decrease in the year 2001
butas compared to the year 2000 due to anticipated savings from our transition to
managing our clinical trials ourselves rather than contracting with third
parties for this function. However, we expect our losses to increase in the
future as we expand our clinical trials and increase our research and
development activities. We currently do not sell any products and we may never
achieve significant revenues or become profitable. Even if we eventually
generate revenues from sales, we nevertheless expect to incur significant
operating losses over the next several years.

OUR POTENTIAL DRUG PRODUCTS ARE IN AN EARLY STAGE OF CLINICAL AND PRECLINICAL
DEVELOPMENT AND MAY NOT PROVE SAFE OR EFFECTIVE ENOUGH TO OBTAIN REGULATORY
APPROVAL TO SELL ANY OF THEM.

We currently are testing our first potential drug product,
Neotrofin(TM), in human clinical trials. We are currently conducting three
trials of Neotrofin(TM) for Alzheimer's disease, spinal cord injury and
Parkinson's disease, and we expect to complete these trials before the end of
the first quarter of 2002. We expect that we will need to complete additional
trials before we will be able to apply for regulatory approval to sell
Neotrofin(TM). Our other proposed products are in preclinical development. We
cannot be certain that any of our potential or proposed products will prove to
be safe or effective in treating disorders of the central nervous system or any
other diseases. All of our potential drugs will require additional research and
development, testing and regulatory clearance before we can sell them. We cannot
be certain that we will receive regulatory approval to sell any of our potential
drugs. We do not expect to have any products commercially available for at least
two years, if at all.

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IF WE ARE UNABLE TO OBTAIN SUBSTANTIAL ADDITIONAL FUNDING ON ACCEPTABLE TERMS,
WE MAY HAVE TO DELAY OR ELIMINATE ONE OR MORE OF OUR DEVELOPMENT PROGRAMS.

We currently are spending cash at a rate in excess of approximately $2.3
million per month, and we expect this rate of spending to continue for at least
the following 12 months. We have declined to exercise our option to issue the
first $10.0 million of convertible debentures pursuant to a letter agreement
datedOn April 17, 2001, we entered into an agreement with
two investors which provided for a sale of common stock by us to the investors
for proceeds of $6.0 million, obligated the investors to buy from us convertible
debentures, or debt obligations convertible into shares of our common stock, in
two blocks, one of $10 million in May 2001 and are consequently obligeda second one of $8 million in
November 2001. The agreement provided for a penalty payment by us of up to pay a break-up fee of $1.0$1
million if we declined to sell the convertible debentures (see Note 15 to the
audited financial statements in our Amendment No. 1 on Form 10-K/A our Annual
Report on Form 10-K filed on April 25, 2001). We are
currently negotiating replacement financing withIn May 2001 we declined to sell
the samefirst $10 million block of convertible debentures, and instead agreed to
sell common stock and warrants to the investors however we
cannot assure you that these negotiations will be successful.for proceeds of $5.95 million
and to reduce the penalty payment to $405,000. We believe that, together with
periodic sales of common stock such as the $3.5four sales totaling approximately
$20.5 million the $5.0
million and the $6.0 million sales in February March and Aprilthrough May 2001,
respectively, assuming that we are able to negotiate replacement financing for
the convertible debentures and assuming that the holders of our
Class B Warrants continue to exercise our Class B Warrants in response to our
call notices, our cash and capital resources will satisfy our current funding
requirements for at least the next twelve months. If the market price of our
common stock is less than $2.00 per share, we may not be able to use our Class B
Warrants as a financing source. As of June 21, 2001, Class B Warrants have been
exercised for 586,400 shares and gross proceeds of approximately $5.1 million.
We have not issued any call notices under our Class B Warrants since November
2000. Should we not be able to continue periodic sales of our common stock successfully negotiate replacement financing for our convertible
debentures or
utilize our Class B Warrants, we may have to seek additional funding. We may not
be able to obtain additional funds on acceptable terms or at all. If adequate
funds are not available, we will have to delay or eliminate one or more of our
development programs.

We expect that we will need substantial additional funds to complete
development and clinical trials of Neotrofin(TM), our lead drug candidate,
before we will be able to submit it to the FDA for approval for commercial sale,
and to support the continued development of Neoquin(TM), our lead anti-cancer
drug candidate.other potential products. Since
we currently have no products available for commercial sale and essentially no
revenues, we must use capital to fund our operating expenses. Our operating
expenses, and consequently our capital requirements, will depend on many
factors, including:

- - continued scientific progress in research and development;development to identify
and develop additional product candidates beyond our lead compound
Neotrofin(TM);

- - the costs and progress of preclinical and clinical testing;testing of
Neotrofin(TM)and additional drug candidates;

- - the cost involved in filing, prosecuting and enforcing patent claims;
and

- the effect of competing technological developments;

- the cost of manufacturing scale-up;

- the cost of commercialization activities; - the time and cost involved in obtaining regulatory approvals;
and

-approvals for our
abilitypotential products.

In addition, if we are successful in obtaining regulatory approval of one or
more of our potential products, we will require additional capital to establish collaborative and other arrangementscover
costs associated with third parties, such as licensing and manufacturing
agreements.commercializing our products.

We expect to seek additional funding through public or private
financings or collaborative or other arrangements with third parties. We may not
obtain additional funds on acceptable terms, if at all. If adequate funds are
not available, we will have to delay or eliminate one or more of our development
programs.

COMPETITION FOR PATIENTS IN CONDUCTING CLINICAL TRIALS AND EXTENSIVE REGULATIONS
GOVERNING THE CONDUCT OF CLINICAL TRIALS MAY PREVENT OR DELAY APPROVAL OF A DRUG
CANDIDATE AND STRAIN OUR LIMITED FINANCIAL RESOURCES.

Many pharmaceutical companies are conducting clinical trials in patients
with Alzheimer's disease. As a result, we must compete with them for clinical
sites, physicians and the limited number of patients with Alzheimer's disease
who fulfill the stringent requirements for participation in clinical trials. Due
to a lack of available information about the condition of Alzheimer's disease
sufferers in the United States, we cannot be certain how many of the over 4
million patients with Alzheimer's disease in the United States would meet the
requirements for participating in our clinical trials. In addition, due to the
confidential nature of clinical trials, we cannot be certain how many of these
patients may be enrolled in competing studies and consequently not available to
us. This competition may increase costs of our clinical trials and delay the
introduction of our potential products.

ANY FAILURE TO COMPLY WITH EXTENSIVE GOVERNMENTAL REGULATION COULD PREVENT OR
DELAY PRODUCT APPROVAL OR CAUSE GOVERNMENTAL AUTHORITIES TO DISALLOW OUR
PRODUCTS AFTER APPROVAL AND SUBJECT US TO CRIMINAL OR CIVIL LIABILITIES.

The U.S. Food and Drug Administration, or FDA, and comparable agencies
in foreign countries impose many requirements on the introduction of new drugs
through lengthy and detailed clinical testing procedures, and other costly and
time consuming compliance procedures. These requirements apply to every stage of
the clinical trial process and make it difficult to estimate when Neotrofin(TM)
or any other potential product will be available commercially, if at all.

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6

Our proprietary compounds will require substantial clinical trials and
FDA review as new drugs. Even if we successfully enroll patients in our clinical
trials, patients may not respond to our potential drug products. We think it is
prudent to expect setbacks. FailureWhile we believe that we are currently in compliance
with applicable FDA regulations, if we fail to comply with the regulations
applicable to suchour clinical testing, the FDA may delay, suspend or cancel our
clinical trials, or the FDA might not accept the test results. The FDA, or any
comparable regulatory agency in another country, may suspend clinical trials at
any time if it concludes that the trials expose subjects participating in such
trials to unacceptable health risks. Further, human clinical testing may not
show any current or future product candidate to be safe and effective to the
satisfaction of the FDA or comparable regulatory agencies or the data derived
therefrom may be unsuitable for submission to the FDA or other regulatory
agencies.

We cannot predict with certainty when we might submit any of our
proposed products currently under development for the regulatory review.approval
required in order to commercially sell the products. Once we submit a proposed
product for review,commercial sale approval, the FDA or other regulatory agencies may
not issue their approvals on a timely basis, if at all. If we are delayed or
fail to obtain suchthese approvals, our business may be damaged. If we fail to
comply with regulatory requirements, either prior to seeking approval or in
marketing our products after approval, we could be subject to regulatory or
judicial enforcement actions. These actions could result in:

- - product recalls or seizures;

- - injunctions;

- - civil penalties;

- - criminal prosecution;

- - refusals to approve new products and withdrawal of existing approvals;
and

- - enhanced exposure to product liabilities.

THE LOSS OF KEY RESEARCHERS OR MANAGERS COULD HINDER OUR DRUG DEVELOPMENT
PROCESS SIGNIFICANTLY AND MIGHT CAUSE OUR BUSINESS TO FAIL.

Our success depends upon the contributions of our key management and
scientific personnel, especially Dr. Alvin Glasky, our Chief Executive Officer
and Chief Scientific Officer. Dr. Glasky has led our research and business
developments since founding our business in 1987 and is the inventor on several
of our patents. Our loss of the services of Dr. Glasky or any other key
personnel could delay or preclude us from achieving our business

objectives. Although we currently have key-man life insurance on Dr. Alvin
Glasky in
the face amount of $2 million, we believe that the loss of Dr. Glasky's services
would damage our research and development efforts substantially. Dr. Glasky is
party to an employment agreement with us which provides for a three year term
expiring December 31, 2003, with automatic renewals thereafter unless we or Dr.
Glasky gives notice of intent not to renew at lease 90 days in advance of the
renewal date.

In addition to Dr. Glasky, the loss of Dr. Luigi Lenaz, our Vice
President, Oncology Division and President of our subsidiary NeoOncoRx, Inc.,
would damage the development of our anti-cancer business substantially, and the
loss of the services of Dr. Olivier Civelli, consultant to our subsidiary
NeoGene, Inc., would harm the development of our functional genomics business
substantially. We also will need substantial additional expertise in finance and
marketing and other areas in order to achieve our business objectives.
Competition for qualified personnel among pharmaceutical companies is intense,
and the loss of key personnel, or the inability to attract and retain the
additional skilled personnel required for the expansion of our business, could
damage our business.

IF WE CANNOT PROTECT OR ENFORCE OUR INTELLECTUAL PROPERTY RIGHTS ADEQUATELY, THE
VALUE OF OUR RESEARCH COULD DECLINE AS OUR COMPETITORS APPROPRIATE PORTIONS OF
OUR RESEARCH.

We actively pursue patent protection for our proprietary products and
technologies. We hold four U.S. patents and currently have fifteensixteen U.S. patent
applications pending.pending, including three which have been allowed. Our issued
patents expire between 2009 and 2014. In addition, we have numerous foreign
patents issued and patent applications pending corresponding to our U.S.
patents. However, our patents may not protect us against our competitors. We may
have to file suit to protect our patents or to defend our use of our patents
against infringement claims brought by others. Because we have limited cash
resources, we may not be able to afford to pursue or defend against litigation
in order to protect our patent rights.

We also rely on trade secret protection for our unpatented proprietary
technology. However, trade secrets are difficult to protect. While we enter into
proprietary information agreements with our employees and consultants, these
agreements may not successfully protect our trade secrets or other proprietary
information.

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7

WE ARE A SMALL COMPANY RELATIVE TO OUR PRINCIPAL COMPETITORS AND OUR LIMITED
FINANCIAL AND RESEARCH RESOURCES MAY LIMIT OUR ABILITY TO DEVELOP AND MARKET NEW
PRODUCTS.

Many companies, both public and private, including well-known
pharmaceutical companies such as Amgen, Inc. Bayer AG, Eli Lilly and Co.,
Novartis, Bristol-Meyers Squibb Company, Pfizer, Inc., and Janssen and Shire,
are developing products to treat Alzheimer's disease and certain of the other
applications we are pursuing. Most of these companies have substantially greater
financial, research and development, manufacturing and marketing experience and
resources than we do. As a result, our competitors may develop additionalbe more successful than
us in developing their products and obtaining regulatory approvals. While we
believe, based on recent industry publications, that Neotrofin(TM) is more
advanced in the drug development process than most other drugs seeking to use
neurotrophic factors to treat Alzheimer's disease, we cannot be certain that
Neotrofin(TM) will be the first of these drugs to receive FDA approval, if it
receives approval at all. In addition, there are more effectivefour drugs currently approved
for the treatment of Alzheimer's disease in the United States, all of which use
a different approach to the disease than Neotrofin(TM). If these treatments are
successful, or less costly than any
drug which we may develop.if other drugs using the neurotrophic factor approach are
approved before Neotrofin(TM), the market for our products could be reduced or
eliminated.

OUR LACK OF EXPERIENCE AT CONDUCTING CLINICAL TRIALS OURSELVES MAY DELAY THE
TRIALS AND INCREASE OUR COSTS.

We have begun to conduct, and intend to conduct in the future, some future
clinical trials ourselves rather than hiring outside contractors. We believe
this conversion may reduce the costs associated with the trials and give us more
control over the trials. However, while some of our management has had
experience at conducting clinical trials, we have never done so as a company.
OurWhile we have not experienced significant delays or increased costs to date due
to this conversion, as we move forward with our first self-conducted clinical
trials, our lack of experience may delay the trials and increase our costs. We
think it is prudent to expect setbacks as we make this transition.

OUR MANAGEMENT HAS LIMITED MANUFACTURING AND MARKETING EXPERIENCE AND MAY BE
UNABLE TO MANAGE OUR GROWTH OR MANUFACTURE AND MARKET OUR PRODUCTS SUCCESSFULLY.

To date, we have engaged exclusively in the development of
pharmaceutical technology and products. In order to commercially exploit our
products and achieve our business goals, assuming we receive FDA approval of

one or more of our potential products, we will have to establish strategic
relationships with other companies that have manufacturing and marketing
capabilities or develop these capabilities ourselves. Our management has
substantial experience in pharmaceutical company operations, but has limited
experience in manufacturing or procuring products in commercial quantities or in
marketing pharmaceutical products. Our management has only limited experience in
negotiating, establishing and maintaining strategic relationships, conducting
clinical trials and other later-stage phases of the regulatory approval process.

If we receive FDA approval of any of our potential products, and if we
are not able to establish satisfactory relationships with other companies that
can meet our resulting manufacturing needs, we may decide to establish a
commercial-scale manufacturing facility for our products. The establishment of
such a facility will require substantial additional funds and personnel, and we
will need to comply with extensive regulations applicable to such a facility.
These requirements and the associated growth would strain our existing
management and operations. Our ability to manage such growth depends upon the
ability of our officers and key employees to:

- - broaden our management team;

- - develop additional expertise among existing management personnel;

- - attract, hire and retain skilled employees; and

- - implement and improve our operational, management information and
financial control systems.

FAILURE TO OBTAIN ADEQUATE REIMBURSEMENT FROM GOVERNMENT HEALTH ADMINISTRATION
AUTHORITIES, PRIVATE HEALTH INSURERS AND OTHER ORGANIZATIONS COULD MATERIALLY
ADVERSELY AFFECT OUR FUTURE BUSINESS, RESULTS OF OPERATIONS AND FINANCIAL
CONDITION.

Our ability to market and sell our products will depend in part on the
extent to which reimbursement for the cost of our products and related
treatments will be available from government health administration authorities,
private health insurers and other organizations. Third party payers are
increasingly challenging the price of medical products and services.

Significant uncertainty exists as to the reimbursement statements of
newly approved health care products. We cannot be certain that any products
approved for marketing will be considered cost effective or that reimbursement
will be available or that allowed reimbursement will be adequate. In addition,
payers' reimbursement policies could adversely affect our ability to sell our
products on a profitable basis.

4
8

HOLDERS OF OUR CONVERTIBLE PREFERRED STOCK, DEBENTURES AND WARRANTS COULD ENGAGE
IN SHORT SELLING TO INCREASE THE NUMBER OF SHARES OF COMMON STOCK ISSUABLE UPON
CONVERSION OR EXERCISE OF THE SECURITIES AND DECREASE THE EXERCISE PRICE OF THE
WARRANTS. IF THIS OCCURS, THE MARKET PRICE OF OUR COMMON STOCK MAY DECLINE.

Short selling is a practice in which an investor borrows shares from a
stockholder to sell in the trading market, with an obligation to deliver the
same number of shares back to the lending stockholder at a future date. Short
sellers make a profit if the price of our common stock declines, allowing the
short sellers to sell the borrowed shares at a higher price than they have to
pay for shares delivered to the lending stockholder. Short selling increases the
number of shares of our common stock available for sale in the trading market,
putting downward pressure on the market price of our common stock.

We have issued a number of securities that may be converted into or
exercised for shares of our common stock based on a floating conversion or
exercise price related to the market price of our common stock. The holders of
these securities may benefit from the downward price pressures caused by short
selling due to the increased number of shares of common stock issuable upon
conversion of convertible securities at a lower conversion price, or the reduced
exercise price that must be paid to obtain shares of common stock upon exercise.

The holders of our Series C Preferred Stock have the right to convert
those shares into shares of our common stock at a rate that varies with the
market price of our common stock. The shares of our Series C Preferred Stock are
convertible into common stock at a conversion price equal to 100% of the average
of the lowest seven closing bid prices of our common stock in the previous 30
trading days, subject to a cap of $5.97. The holders of shares of preferred stockSeries A
Preferred Stock issued by our subsidiary, NeoGene Technologies, Inc., have
rights to exchange those shares for shares of our convertible preferred stock.
If we hold less than $5 million in cash and cash equivalents at the time of the
exchanges, thethese holders of NeoGene's Series A
Preferred Stockalso have the right to exchange those shares into our
convertible debentures. If those exchange rights are exercised, the number of shares of
common stock issuable upon conversion of the convertible preferred stock or
debentures will vary with the market price of our common stock. Theresulting
shares of our convertible preferred stock or debentures will generally be
convertible into common stock at a conversion price equal to 101% or 100% of the average
of either the lowest ten or the lowest seven, respectively, closing bid prices of our common stock in the previous 30
trading days, and subject to capsa cap of either
120% or 150% of the market price of our common stock
at the time of the exchange, in each case depending upon the series of NeoGene preferred stock
exchanged.exchange. In addition, on April 17, 2001, we entered into an
agreement with two
investorsthe holders of NeoGene's Series A Preferred Stock that commit
thethese investors to purchase convertible debentures in two
tranches. Should we not issue the convertible debentures, we will be obligated
to pay penalties of up to $1,000,000 to the investors.NeoTherapeutics. If
issued, the convertible debentures will generally be convertible into common
stock at a conversion price equal to an initial conversion price of 120% of the
average per share market value of our common stock over the five trading days
preceding the date of issuance or, after 90 days from the date of issuance, the
lesser of the initial conversion price or 101% of the average of the ten lowest
per share
market valuesclosing bids of our common stock in the previous 30 trading days from the date
of conversion.

Consequently,7

As a result of the terms of these securities, the number of shares of
common stock issuable upon conversion of the convertible preferred stock or
debentures will vary with the market price of our stock. The number of shares of
our common stock that are issuable upon conversion of any of these securities
increases as the price of our common stock decreases. Increased sales volume of
our common stock could put downward pressure on the market price of the shares.
This fact could encourage holders of the securities to sell short our common
stock prior to conversion of the securities, thereby potentially causing the
market price to decline and a greater number of shares to become issuable upon
conversion of the preferred stock or debentures. The holders of the securities
could then convert their securities and use the shares of common stock received
upon conversion to cover
their short positions.replace the shares sold short. The holders of the securities
could thereby profit by the decline in the market price of the common stock
caused by their short selling.

Similarly, the exercise price of our outstanding Class B Warrants, if we
deliver a redemption notice, is equal to the lesser of $33.75 per share (subject
to adjustment for stock splits, reverse splits and combinations) and 97% (or 95%
if the market price of our common stock is less than $5.00 per share) of the
closing bid price of our common stock on the trading day after the redemption
notice is delivered. This fact could give the holders of our Class B Warrants
incentive to sell short our common stock after receipt of a redemption notice,
which could cause the market price to decline. The holders of the Class B
Warrants could then exercise their Class B Warrants and use the shares of common
stock received upon exercise to cover theirreplace the shares sold short positions and thereby profit
by the decline in the market price of the common stock caused by their short
selling. Additionally, it is importantThere are currently outstanding Class B Warrants exercisable for
3,413,600 shares of common stock.

Montrose Investments Ltd. and Strong River Investments, Inc. each hold
Class B Warrants to note that a significant amountpurchase 1,706,800 shares of the
NeoGene preferredour common stock and $2.5
million worth of NeoGene Series A Preferred Stock. Societe Generale holds $2.0
million worth of our warrantsSeries C Preferred Stock. No other investors hold NeoGene
Preferred Stock, NeoTherapeutics Preferred Stock or Class B Warrants. In
addition, Montrose Investments Ltd. and Strong River Investments, Inc. are owned bythe
investors under our April 17, 2001 agreement for the purchase of convertible
debentures. These facts give these three investors. This fact
gives these investors greater influence over the
market price of our stock. Twostock, however, each of these investors entered into the April 17, 2001 letter agreement for the
purchasemake independent
investment decisions, and each has agreed to vote any and all shares of convertible debentures.our
common stock that they own as recommended by our board of directors in any
meeting of our stockholders.

THE TRADING PRICE OF OUR COMMON STOCK AND THE TERMS OF OUR CONVERTIBLE
SECURITIES AND WARRANTS MUST COMPLY WITH THE LISTING REQUIREMENTS OF THE NASDAQ
NATIONAL MARKET OR WE COULD BE DELISTED AND THE LIQUIDITY OF OUR COMMON STOCK
WOULD DECLINE.

Our common stock areis listed on the Nasdaq National Market. To remain
listed on this market, we must meet Nasdaq's listing maintenance standards and
abide by Nasdaq's rules governing listed companies. If the price of our common
stock falls below $1.00 per share for an extended period, or if we fail to meet
other Nasdaq standards, including minimum market capitalization and minimum
total assets, or violate Nasdaq rules, our common stock could be delisted from
the Nasdaq National Market.

Nasdaq has established certain rules regarding the issuance of "future priced
securities."securities" or securities convertible into common stock based on a floating
conversion price, so that the number of shares of common stock issuable upon
conversion of the securities is not known when the securities are sold. These
rules may apply to our Series C Preferred Stock, the preferred stock or
debentures we may issue in exchange for NeoGene preferred stock or the
convertible debentures we may issue pursuant to the April 17, 2001 letter agreement,
because the number of shares of our

5
9 common stock issuable upon conversion of
these securities is based upon a future price of our common stock. Nasdaq's
concerns regarding these securities include the following:potential dilution to our
existing stockholders if the price of our common stock goes down causing a large
number of shares to be issued upon conversion of the securities, and the
corresponding potential for excessive return on investment for the purchaser of
the convertible securities. In addition, since the holders of future priced
securities may benefit from a decrease in the market price of our common stock,
those holders may have greater incentive to engage in manipulative practices. In
light of these concerns, Nasdaq has indicated that the following rules may be
implicated by future priced securities:

Stockholders must approve significant issuances of listed securities at
a discount to market or book value. Nasdaq rules prohibit an issuer of listed
securities from issuing 20% or more of its outstanding capital stock at less
than the greater of book value or the then current market value without
obtaining prior stockholder consent. We did not obtain stockholder consent prior
to issuing the NeoGene preferred stock and granting the exchange right to the

holders of the NeoGene preferred stock or prior to signing the April 17, 2001
agreement. In the absence ofPrior to obtaining stockholder approval, the securities issued in
these transactions by their term mayterms could not be converted into 20% or more of the
number of shares of our common stock outstanding at the time the securities are
issued. We anticipate, but are not assured of, obtainingobtained this approval at our Annual Meeting of Stockholders to be
held on June 11, 2001. Should the
stockholders not approve this financing, we would be required to refund the sale
proceeds and pay significant penalties.

Public interest concerns. Nasdaq may terminate the listing of a security
if necessary to prevent fraudulent and manipulative acts and practices or to
protect investors and the public interest. With respect to future priced
securities, Nasdaq has indicated that it may delist a security if the returns
with respect to the future priced security become excessive compared to the
returns being earned by public investors in the issuer's securities.

Furthermore, certainsome requirements for continued listing, such as the $1.00
minimum bid price requirement, are outside of our control. Accordingly, there is
a risk that Nasdaq may delist our common stock.

If our common stock is delisted, we likely would seek to list our common
stock on the Nasdaq SmallCap Market or for quotation on the American Stock
Exchange or a regional stock exchange. However, listing or quotation on such
market or exchange could reduce the market liquidity for our common stock. If
our common stock were not listed or quoted on another market or exchange,
trading of our common stock would be conducted in the over-the-counter market on
an electronic bulletin board established for unlisted securities or in what are
commonly referred to as the "pink sheets." As a result, an investor would find
it more difficult to dispose of, or to obtain accurate quotations for the price
of, our common stock. In addition, delisting from the Nasdaq National Market and
failure to obtain listing or quotation on such other market or exchange would
subject our common stock to so-called "penny stock" rules. These rules impose
additional sales practice and market-making requirements on broker-dealers who
sell and/or make a market in such securities. Consequently, if our common stock
is delisted from the Nasdaq National Market and we fail to obtain listing or
quotation on another market or exchange, broker-dealers may be less willing or
able to sell and/or make a market in our common stock and purchasers of our
common stock may have more difficulty selling such common stock in the secondary
market. In either case, the market liquidity of our common stock would decline.

THERE ARE A SUBSTANTIAL NUMBER OF SHARES OF OUR COMMON STOCK ELIGIBLE FOR FUTURE
SALE IN THE PUBLIC MARKET. THE SALE OF THESE SHARES COULD CAUSE THE MARKET PRICE
OF OUR COMMON STOCK TO FALL. ANY FUTURE EQUITY ISSUANCES BY US MAY HAVE DILUTIVE
AND OTHER EFFECTS ON OUR EXISTING STOCKHOLDERS.

There were 18,431,79120,777,181 shares of our common stock outstanding as of May
1,June
22, 2001. In addition, security holders held options and warrants as of May 1,June 22,
2001 which, if exercised, would obligate us to issue up to an additional
11,948,64311,662,018 shares of common stock.stock as of June 22, of which 5,165,385 shares are
subject to options or warrants which are currently exercisable at the sole
election of the holder. Many of these shares, if issued, would likely be issued
at a discount to the prevailing market price. A substantial number of those
shares, when we issue them upon exercise, will be available for immediate resale
in the public market. In addition, we have the ability to sell up to
approximately $35$27 million of our common stock pursuant to a shelf registration
that will be eligible for immediate resale in the market. Furthermore, these
numbers do not include the number of shares of common stock that may become
issuable upon conversion of our Series C Preferred Stock or the securities that
we may be required to issue in exchange for shares of NeoGene preferred stock.
While this number of shares cannot be accurately determined at this time,
assuming an average conversion price of $5.00 per share and payment of all
dividends in shares, up to 1,790,000 shares could be issuable and available for
resale upon conversion of these securities. The market price of our common stock
could fall as a result of such resales.

ANY FUTURE EQUITY ISSUANCES BY US MAY HAVE DILUTIVE AND OTHER EFFECTS ON OUR
EXISTING STOCKHOLDERS.resales, due to the increased number of shares
available for sale in the market. If all 13,452,018 shares were issued without
any increase in our market capitalization, the market price per share of our
common stock may be reduced by approximately 40%.

We have financed our operations, and we expect to continue to finance
our operations, by issuing and selling equity securities. Any issuances by us of
equity securities may be at or below the prevailing market price of our common
stock and may have a dilutive impact on our other stockholders. Additionally, suchThese issuances
would also cause our net income or loss per share to decrease in future periods.
As a result, the market price of our common stock could drop.

In addition, if we issue common stock upon

the exercise or conversion of our warrants and other convertible securities, it
may be issued at a discount to its then-prevailing market price. These
discounted sales could cause the market price of our common stock to drop.13

WE MAY BE SUBJECT TO PRODUCT LIABILITY CLAIMS, AND MAY NOT HAVE SUFFICIENT
PRODUCT LIABILITY INSURANCE.INSURANCE TO COVER ANY CLAIMS, WHICH MAY EXPOSE US TO
SUBSTANTIAL LIABILITIES.

We may be exposed to product liability claims from patients who
participate in our clinical trials, or, if we are able to obtain FDA approval
for one or more of our potential products, from consumers of our products.
Although we currently carry product liability insurance in the amount of $5
million per occurrence, it is possible that the amounts of suchthis coverage will be
insufficient to protect us from future claims. Further, we cannot be certain
that we will be able to obtain or maintain additional insurance on acceptable
terms for our clinical and commercial activities or that such additional
insurance would be sufficient to cover any potential product liability claim or
recall. Failure to maintain sufficient insurance coverage could have a material
adverse effect on our business and results of operations.operations if claims are made that
exceed our coverage.

THE USE OF HAZARDOUS MATERIALS IN OUR RESEARCH AND DEVELOPMENT EFFORTS IMPOSES
CERTAIN COMPLIANCE COSTS ON US AND MAY SUBJECT US TO LIABILITY FOR CLAIMS
ARISING FROM THE USE OR MISUSE OF THESE MATERIALS.

Our research and development efforts involve the use of hazardous
materials, including biological materials, chemicals and radioactive materials.
We are subject to federal, state and local laws and regulations governing the
storage, use and disposal of suchthese materials and certainsome waste products. We believe
that our safety procedures for handling and disposing of suchthese materials comply
with the standards prescribed by federal, state and local regulations. However,
we cannot completely eliminate the risk of accidental contamination or injury
from these materials. If there was an accident, we could be held liable for any
damages that result. Such liabilityresult, which could exceed our resources. Currently the costs of
complying with federal, state and local regulations are not significant, and
consist primarily of waste disposal expenses. We may incur substantially
increased costs to comply with regulations, particularly environmental
regulations if we develop our own commercial manufacturing facility.

THE MARKET PRICE AND VOLUME OF OUR COMMON STOCK FLUCTUATE SIGNIFICANTLY AND
COULD RESULT IN SUBSTANTIAL LOSSES FOR INDIVIDUAL INVESTORS.

The stock market from time to time experiences significant price and
volume fluctuations that are unrelated to the operating performance of
particular companies. These broad market fluctuations may cause the market price
of our common stock to drop. In addition, the market price of our common stock
is highly volatile. Factors that may cause the market price of our common stock
to drop include fluctuations in our results of operations, timing and
announcements of our technological innovations or new products or those of our
competitors, FDA and foreign regulatory actions, developments with respect to
patents and proprietary rights, public concern as to the safety of products
developed by us or others, changes in health care policy in the United States
and in foreign countries, changes in stock market analyst recommendations
regarding our common stock, the pharmaceutical industry generally and general
market conditions. In addition, the market price of our common stock may drop if
our results of operations fail to meet the expectations of stock market analysts
and investors. During the last year, the price of our common stock has ranged
between $13.50 and $2.22, and the daily trading volume has been as high as
2,006,000 shares and as low as 10,600 shares, with a recent average of
approximately 112,000 shares.

OUR DIRECTORS AND EXECUTIVE OFFICERS OWN A SUBSTANTIAL PERCENTAGE OF OUR COMMON
STOCK. THEIR OWNERSHIP COULD ALLOW THEM TO EXERCISE SIGNIFICANT CONTROL OVER
CORPORATE DECISIONS AND TO IMPLEMENT CORPORATE ACTS THAT ARE NOT IN THE BEST
INTERESTS OF OUR STOCKHOLDERS AS A GROUP.

Our directors and executive officers beneficially own approximately
12.6%11.6% of our outstanding common stock as of March 30,June 21, 2001. In addition, several
of our stockholders, including Montrose Investments Ltd. and Strong River
Investments, Inc. and Societe Generale have agreed that they will vote any and
all shares of our common stock that they own as recommended by our board of
directors in any meeting of our stockholders. Therefore,As of June 21, 2001, these
stockholders collectively held 1,649,157 shares of our common stock, or
approximately 8.0% of the number of shares outstanding, and held warrants and
convertible securities which could result in the issuance of up to 6,823,146
additional shares, for a total of 8,092,303 shares or 29.8% of the total number
outstanding if all of those securities were converted or exercised, assuming a
conversion price of $4.00 per share for all floating price securities. Of the
additional shares, only 1,780,000, or approximately 7.9%, could be issued at the
option of the holder within 60 days of June 21, 2001. As a result of these
holdings, our directors and executive officers, if they acted together, could
exert substantial influence over matters requiring approval by our stockholders.
These matters would include the election of directors and the approval of
mergers or other business combination transactions. This concentration of
ownership and voting power may discourage or prevent someone from acquiring our
business.

EFFECT OF10

CERTAIN CHARTER AND BYLAWS PROVISIONS AND STOCKHOLDER RIGHTS PLAN.PLAN MAY MAKE IT
MORE DIFFICULT FOR SOMEONE TO ACQUIRE CONTROL OF US OR REPLACE CURRENT
MANAGEMENT.

Certain provisions of our Certificate of Incorporation and Bylaws may
make it more difficult for someone to acquire control of us.us or replace our
current management. These provisions may make it more difficult for stockholders
to take certain corporate actions and could delay or discourage prevent someone
from acquiring our business.business or replacing our current management, even if doing
so would benefit our stockholders. These provisions could limit the price that
certain investors might be willing to pay for shares of our common stock.

On December 13, 2000, we adopted a Stockholder Rights Plan pursuant to
which we have distributed rights to purchase units of our capital Series B
Junior Participating Preferred Stock. The rights become exercisable upon the
earlier of ten days after a person or group of affiliated or associated persons
has acquired 20% or more of the 7
11

outstanding shares of our common stock or ten
days after a tender offer has commenced that would result in a person or group
beneficially owning 20% or more of our outstanding common stock. These rights
could delay or discourage someone from acquiring our business.

FORWARD-LOOKING STATEMENTS

We undertake no obligation to update publicly any forward-looking
statements, whether as a result of new information, future events or otherwise.
We also may make additional disclosures in our Annual Report on Form 10-K,
Quarterly Reports on Form 10-Q and Current Reports on Form 8-K that we may file
from time to time with the Securities and Exchange Commission. Please also note
that we provide a cautionary discussion of risks and uncertainties under the
section entitled "Risk Factors" in our Annual Report on Form 10-K. These are
factors that we think could cause our actual results to differ materially from
expected results. Other factors besides those listed here could also adversely
affect us. This discussion is provided as permitted by the Private Securities
Litigation Reform Act of 1995.

ISSUANCE OF COMMON STOCK TO THE SELLING STOCKHOLDERS

On September 29, 2000, we entered into a securities purchase agreement
with Montrose Investments Ltd. and Strong River Investments, Inc. for the
issuance and sale of common stock and warrants for aggregate consideration of
$8,000,000. Pursuant to the securities purchase agreement, among other equity
securities issued, we issued Adjustable Warrants to purchase, at an exercise
price of $0.001 per share, a number of shares of common stock to be determined
at two vesting dates. The first vesting date was January 31, 2001 and the second
vesting date was March 15, 2001.

The number of shares of common stock issuable at each vesting date under
the Adjustable Warrants, was determined by a formula based on the ten lowest
closing bid prices of our common stock during the 30 consecutive trading days
prior to each vesting date. A total of 1,070,758 shares vested on the first
vesting date. Through the application of cashless exercise provisions of the
Adjustable Warrants, 1,070,336 shares of common stock were issued to the selling
stockholders following the first vesting date.

On April 17, 2001, we entered into an agreement for a separate financing
transaction with the same purchasers as a part of which we agreed to amend the
Adjustable Warrantsbusiness, even if doing so
that the aggregate number of shares of common stock
issued upon exercise of the Adjustable Warrants in respect of the second vesting
date was 900,000 shares of common stock, after the application of cashless
exercise provisions.

Pursuant to registration rights agreements we entered into with Montrose
Investments Ltd. and Strong River Investments, Inc., we have filed a
registration statement, of which this prospectus forms a part, in order to
permit the selling stockholders to resell to the public the shares of common
stock they acquired upon the exercise of the Adjustable Warrants pursuant to the
April 17, 2001 agreement.

Montrose Investments Ltd. and Strong River Investments, Inc. have agreed
that they will vote any and all shares of our common stock that they own as
recommended by our board of directors in any meeting ofwould benefit our stockholders.

USE OF PROCEEDS

TheUnless otherwise indicated in a supplement to this prospectus, we
anticipate that any net proceeds from the sale of the common stocksecurities will belongbe used
for general corporate purposes which may include but are not limited to the
selling stockholders. We will not receive anyworking
capital, capital expenditures, research and development and general and
administrative expenses. Net proceeds from such sales.

8
the sale of the offered securities
initially may be temporarily invested in short-term interest-bearing securities.

PLAN OF DISTRIBUTION

On June 12, SELLING STOCKHOLDERS

The following table sets forth information regarding beneficial
ownership2001, we entered into a Sales Agreement (the "Sales
Agreement") with Cantor Fitzgerald & Co. ("Cantor") to act as underwriter for an
offering from time to time of up to $8.4 million worth of our common stock byin
one or more placements. As part of this offering, Cantor may make sales "at the
selling stockholders as of May 3, 2001.

The selling stockholders may sell up to 900,000 shares ofmarket" or directly into the Nasdaq National Market, the existing trading market
for our common stock, pursuantincluding sales made to this prospectus. HBK Management L.L.C. has voting and
investment power overor through a market maker or
through an electronic communications network, at the securities beneficially owned by Montrose Investments
Ltd. Enright Holding Corp.,prevailing market price at
the time of which Mr. Avi Vigder is managing director, has
voting and investment power over the securities beneficially owned by Strong
River Investments, Inc. The selling stockholders have not had any material
relationship with ussale or any of our affiliatesat prices related to those prevailing market prices or predecessors within the past
three years other than as a result of the ownership of common stock or as a
result of the negotiation and the execution of any equity investment agreements.

Number of
Shares of Shares of Common Stock
Common Stock Number of Beneficially Owned
Beneficially Shares of Following the Offering(3)
Owned % of Common Stock ------------------------------
Name Before Offering Class Offered Hereby Number % of Class
- ---- --------------- ----- -------------- --------- ----------

Montrose Investments Ltd. 960,432(1) 4.999% 450,000 652,585(4) 3.45%
Strong River Investments, Inc. 950,740(2) 4.999% 450,000 836,785(5) 4.43%

* Less than 1%.

(1) Includes 179,736 shares held by Montrose Investments Ltd. as of May 3,
2001, 450,000 shares issuable in respect of the adjustable warrants and
330,696 shares issuable upon conversion of preferred stock within 60
days of May 3, 2001. By their terms, the preferred stock and adjustable
warrants may not be converted or exercised, as applicable, to the extent
that the holder would beneficially own more than 4.999% of our common
stock immediately after the conversion or exercise.

(2) Includes 363,936 shares held by Strong River Investments, Inc. as of May
3, 2001, 450,000 shares issuable in respect of the adjustable warrants
and 136,804 shares issuable upon conversion of preferred stock within 60
days of May 3, 2001. By their terms, the preferred stock and adjustable
warrants may not be converted or exercised, as applicable, to the extent
that the holder would beneficially own more than 4.999% of our common
stock immediately after the conversion or exercise.

(3) Assumes the sale by the selling stockholders of all of the shares of
common stock available for resale under this Prospectus.

(4) Includes 179,736 shares held by Montrose Investments Ltd. as of May 3,
2001 and 472,849 shares issuable upon conversion of preferred stock
within 60 days of May 3, 2001, estimated based on the conversion price
of the preferred stock calculated as of May 3, 2001.

(5) Includes 363,936 shares held by Strong River Investments, Inc. as of May
3, 2001 and 472,849 shares issuable upon conversion of preferred stock
within 60 days of May 3, 2001, estimated based on the conversion price
of the preferred stock calculated as of May 3, 2001.

PLAN OF DISTRIBUTION

The selling stockholders and any of their pledgees, assignees and
successors-in-interest may, from time to time, sell any or all of the shares of
common stock offered hereby on any stock exchange, market or trading facility on
which the shares are traded or in private transactions. These sales may be at
fixed or
negotiated prices. The selling stockholderstransactions in the shares may use anybe effected during or
after regular trading hours by one or more of the following methods when selling shares:

-methods: ordinary
brokerage transactions and transactions in which the broker-dealerbroker solicits purchasers;

-
block trades in which the broker-dealerbroker or dealer will attempt to sell the shares as
agent but may position and attempt to resell a portion of the block as principal
in order to facilitate the transaction; - purchases by a broker-dealerbroker or dealer as
principal and resale by the
broker-dealer for its account;

- an exchange distribution in accordance with the rules of the
applicable exchange;

-principal; privately negotiated transactions; 9
13

- short sales;

- broker-dealers may agree with the selling stockholders to sell a
specified number of such shares at a stipulated price per share;

- a combination of any such methods of sale; and

- any other method permitted pursuant to applicableby
law. The selling stockholdersbrokers or dealers may alsoreceive compensation in the form of discounts,
concessions or commissions. We will provide a prospectus supplement to describe
any transaction to the extent required by the federal securities laws.

Pursuant to the Sales Agreement, we may, but we are under no obligation
to, elect to notify Cantor that we want to sell shares of common stock and the
proposed terms under which we would make the sale. Cantor may, but is under no
obligation to, accept the offer from us. If we agree with Cantor on the terms of
a proposed placement, including the number of shares of common stock to be
offered in the placement and any minimum price below which sales may not be
made, Cantor has agreed to use its commercially reasonable efforts, consistent
with its normal trading and sales practices, to try to sell such shares in
accordance with such terms. In the event that sales are made, Cantor will
provide written notice to us and we will deliver such shares on the third
business day following the date of such sale, unless otherwise specified by the
parties. The Sales Agreement is terminable by either Cantor or us after one
year, provided that Cantor may terminate the Sales Agreement earlier upon the
occurrence of certain events.

Cantor, and any broker or dealer that participates in the distribution
(collectively, "Distribution Participants"), is an underwriter within the
meaning of Section 2 (a) (11) of the Securities Act, and any commissions
received by these brokers or dealers and any profit realized on the resale of
the securities sold by them while acting as principal might be deemed to be
underwriting discounts or commissions under the Securities Act. As underwriters
they would be required to comply with the requirements of the Securities Act and
the Securities Exchange Act of 1934, as amended, or the Exchange Act, including,
without limitation, Rule 144415 (a) (4) under the Securities Act if available, rather thanand Rule 10b-5 and
Regulation M under this prospectus.

The selling stockholdersthe Exchange Act. These rules and regulations may alsolimit the
timing of purchases and sales of shares of common stock by "Distribution
Participants". Under these rules and regulations, Distribution Participants:

- - may not engage in short sales against the box,
putsany stabilization activity in connection with our
securities; and

calls and other transactions in11

15
- - may not bid for or purchase any of our securities or derivativesattempt to induce
any person to purchase any of our securities, other than as permitted
under the Exchange Act, until such Distribution Participant has
completed its participation in the distribution.

Cantor has informed us that if permitted under the federal securities
laws it may purchase and maysell shares of our common stock for its own account, as
market makes or otherwise, at the same time as it is making sales of shares of
our common stock under the Sales Agreement.

We have agreed that, without the written consent of Cantor, we will not,
directly or indirectly, offer to sell, sell, contract to sell, grant any option
to sell or deliverotherwise dispose of any shares inof our common stock, securities
convertible into or exchangeable for our common stock, warrants or any rights to
acquire our common stock during the period beginning on the fifth trading day
preceding the date on which we and Cantor agree to the terms of a placement
under the Sales Agreement and ending on the fifth trading day after the
settlement of the final sale made as part of that placement.

In connection with these trades.any sales made pursuant to the Sales Agreement,
Cantor is to receive compensation of 4% of the gross proceeds and warrants to
purchase shares of common stock in an amount equal to 10% of the number of
shares sold by Cantor at an exercise price equal to 130% of the volume weighted
average sales price of the shares of common stock sold by Cantor. The selling stockholders may pledge their shareswarrants
are exercisable for five years and contain a cashless exercise provision
commencing one year after issuance. We have also granted Cantor limited demand
and piggyback registration rights with respect to their brokersthe common stock underlying
the warrants, which registration rights also commence one year after the
issuance of the warrants.

Simultaneous with entering into the Sales Agreement, we entered into
another agreement with Cantor on a similar basis (the "Other Agreement") for up
to $25 million worth of our common stock that is currently registered under our
Registration Statement on Form S-3, registration number 333-53108. As with the
Sales Agreement, any sales under the margin
provisionsOther Agreement shall be subject to our
agreeing with Cantor, in each instance, as to the terms and conditions of customer agreements. Ifsuch
sale. However, unlike the Sales Agreement, Cantor may not make sales pursuant to
the Other Agreement directly into the Nasdaq National Market or otherwise in a
selling stockholder defaults on a margin
loan, the broker may, from time to time, offer and sell the pledged shares. The
selling stockholders have advised usmanner that they have not entered into any
agreements, understandings or arrangements with any underwriters or
broker-dealers regarding the sale of their shares other than ordinary course
brokerage arrangements, nor is there an underwriter or coordinating broker
acting in connection with the proposed sale of shares by the selling
stockholders.

Broker-dealers engaged by the selling stockholders may arrange for other
brokers-dealers to participate in sales. Broker-dealers may receive commissions
or discounts from the selling stockholders, or, if any broker-dealer acts as
agent for the purchaser of shares, from the purchaser, in amounts to be
negotiated. The selling stockholders do not expect these commissions and
discounts to exceed what is customary in the types of transactions involved.

The selling stockholders and any broker-dealers or agents that are
involved in selling the shares may be deemed to be "underwriters" withinan "at the meaning of the Securities Actmarket" offering as defined in connection with such sales. In such event, any
commissions received by such broker-dealers or agents and any profit on the
resale of the shares purchased by them may be deemed to be underwriting
commissions or discountsRule
415 under the Securities Act. In connection with any sales under the Other
Agreement, Cantor is to receive compensation of 4.00% on the first $10 million
gross proceeds, 3.50% on the next $10 million gross proceeds and 3.00% on the
next $5 million. In addition, whenever Cantor receives cash compensation
pursuant to the Other Agreement in connection with sales actually effected by
Cantor thereunder or pursuant to Alternative Sales (as defined below), we will
issue warrants to Cantor upon the same terms and conditions upon which warrants
are issued to Cantor pursuant to the Sales Agreement.

Until Cantor receives aggregate cash compensation of $336,000 (or 4% of
$8.4 million gross proceeds) for sales made under the Sales Agreement and the
Other Agreement, Cantor, subject to certain exceptions, is to receive 2% of the
gross proceeds in any transaction in which we sell or issue our common stock for
cash to or through a party or parties other than Cantor or its affiliates
("Alternative Sales").

We have also agreed to payreimburse Cantor for its out-of-pocket expenses
incurred in connection with the sales agreements and the agreement referred to
below, including up to an aggregate of $100,000 incurred in connection with
entering into the sales agreements, and we are required to advance Cantor
$40,000 with respect to certain expenses that may be incurred under the Other
Agreement, all feesor part of which may be refundable.

In addition, we have entered into an agreement with Cantor, pursuant to
which Cantor has been engaged to provide investment banking and other financial
services. The agreement is terminable at the will of either party. The agreement
provides that Cantor is to receive an annual retainer of $75,000 and
reimbursement of its out-of-pocket expenses incident to the registrationincurred in connection with services
rendered thereunder. Upon execution of the shares, including feesagreement, we paid Cantor a $75,000
annual retainer and disbursements of counsel to the selling
stockholders.$50,000 as a non-refundable deposit against our
reimbursement obligation.

We have agreed to indemnify the selling stockholdersCantor against certain losses, claims, damages and liabilities,
including liabilities under the Securities Act.

Upon notificationAct, or to us by a selling stockholder that any material
arrangement has been entered into with a broker-dealer for the sale of shares
through a block trade, special offering, exchange distribution or secondary
distribution or a purchase by a broker or dealer, we will file a supplementcontribute to this prospectus, ifpayments
Cantor may be required pursuant to Rule 424(b) under the Securities Act,
disclosing the following:

- the name of each such selling stockholder and of the
participating broker-dealer(s);

- the number of shares involved;

- the price at which such shares were sold;

- the commissions paid or discounts or concessions allowed to such
broker-dealer(s), where applicable;

- that such broker-dealer(s) did not conduct any investigation to
verify the information set out or incorporated by referencemake in this prospectus; and

- other facts material to the transaction.

In addition, we will file a supplement to this prospectus when a selling
stockholder notifies us that a donee or pledgee intends to sell more than 500
shares of our common stock.

10respect thereof.

12
14

We have advised the selling stockholders that the anti-manipulation
provisions of Regulation M promulgated under the Securities Exchange Act of 1934
may apply to their sales of our shares offered by this prospectus.16

VALIDITY OF COMMON STOCK

Latham & Watkins, Costa Mesa, California, will pass on the validity of
the issuance of the shares of common stock offered by this prospectus.

EXPERTS

The consolidated financial statements of the Company incorporated by reference in this registration
statement, to the extent and for the periods indicated in their report, have
been audited by Arthur Andersen LLP, independent public accountants, as indicated in their report with respect
thereto, and are
included herein in reliance upon the authority of said firm as experts in giving
said report. Reference is made to said report which states that the Company is
in the development stage, as described in Note 1 to the consolidated financial
statements.

LIMITATION ON LIABILITY AND DISCLOSURE OF COMMISSION POSITION ON
INDEMNIFICATION FOR SECURITIES ACT LIABILITIES

Our bylaws provide for indemnification of our directors and officers to
the fullest extent permitted by law. Insofar as indemnification for liabilities
under the Securities Act may be permitted to directors, officers or controlling
persons of the Company pursuant to the Company's Certificate of Incorporation,
as amended, bylaws and the Delaware General Corporation Law, the Company has
been informed that in the opinion of the Commission such indemnification is
against public policy as expressed in such Act and is therefore unenforceable.

WHERE YOU CAN FIND MORE INFORMATION

Our annual report on Form 10-K for the fiscal year ended December 31,
2000, as amended by Form 10-K/A filed April 25, 2001;

Our quarterly report on Form 10-Q for the quarter ended March 31, 2001,
filed on May 14, 2001;

Our current reports on Form 8-K filed February 16, 2001 and March 14,
2001;

Our definitive proxy statement filed pursuant to Section 14 of the
Exchange Act in connection with our 2001 Annual Meeting of Stockholders; and

The description of our common stock contained in the Registration of
Securities of Certain Successor Issuers filed pursuant to Section 12(g) of the
Exchange Act on Form 8-B on June 27, 1997, including any amendment or reports
filed for the purpose of updating such description.

1113

You can request a copy of these filings, at no cost, by writing or
telephoning us at the following address:

NeoTherapeutics, Inc.
Attn: Investor Relations
157 Technology Drive
Irvine, California 92618
(949) 788-6700

12
1617

================================================================================

900,000

SHARES OF COMMON STOCK

NEOTHERAPEUTICS, INC.

PROSPECTUS

MAYJULY __, 2001

NO DEALER, SALESPERSON OR OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE
ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS, AND IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE COMPANY OR ANY UNDERWRITER. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER
OR SOLICITATION BY ANYONE IN ANY JURISDICTION IN WHICH SUCH OFFER OR
SOLICITATION IS NOT AUTHORIZED OR IN WHICH THE PERSON MAKING SUCH OFFER IS NOT
QUALIFIED TO DO SO OR TO ANYONE TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR
SOLICITATION. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCE, CREATE ANY IMPLICATION THAT THERE HAS
NOT BEEN ANY CHANGE IN THE AFFAIRS OF THE COMPANY SINCE THE DATE HEREOF.

================================================================================

1718

PART II

INFORMATION NOT REQUIRED IN THE PROSPECTUS

ItemITEM 14. Other Expenses of Issuance and Distribution.OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

The following sets forth the estimated costs and expenses, all of which shall be
borne by the Registrant, in connection with the offering of the securities
pursuant to this Registration Statement:

Registration Fee $ 1,091.252,100.00
Accounting Fees and Expenses $ 5,000.006,000.00*
Legal Fees and Expenses $15,000.00$ 20,000.00*
Miscellaneous $ 5,000.00
----------5,000.00*
------------

Total $26,091.25
==========$ 33,100.00*
=============

Item* Estimated

ITEM 15. Indemnification of Directors and Officers.INDEMNIFICATION OF DIRECTORS AND OFFICERS.

The bylaws of the Registrant provide for indemnification of the
Registrant's directors and officers to the fullest extent permitted by law.
Insofar as indemnification for liabilities under the Securities Act may be
permitted to directors, officers or controlling persons of the Registrant
pursuant to the Registrant's Certificate of Incorporation, bylaws and the
Delaware General Corporation Law (the "DGCL"), the Registrant has been informed
that in the opinion of the Commission such indemnification is against public
policy as expressed in such Act and is therefore unenforceable.

Section 102(b)(7) of the DGCL provides that a certificate of
incorporation may include a provision which eliminates or limits the personal
liability of a director to the corporation or its stockholders for monetary
damages for breach of fiduciary duty as a director, except for liability (i) for
any breach of the director's duty of loyalty to the company or its stockholders,
(ii) for acts or omissions not in good faith or which involve intentional
misconduct or a knowing violation of law, (iii) under Section 174 of the DGCL,
relating to prohibited dividends or distributions or the repurchase or
redemption of stock or (iv) for any transaction from which the director derives
an improper personal benefit. The Registrant's Certificate of Incorporation
includes such a provision. As a result of this provision, the Registrant and its
stockholders may be unable to obtain monetary damages from a director for breach
of his or her duty of care.

ItemITEM 16. Exhibits.EXHIBITS

Exhibits: Description
- --------- -----------

4.1 Letter Agreement. (Filed as Exhibit 10.20 to the Registrant's Annual
Report on form 10-K as amended, as filed with the Commission on April
17, 2001, and incorporated herein by reference.)

4.2 Adjustable Warrant issued by Registrant to Montrose Investments,
Ltd.,1.1 Sales Agreement, dated as of September 29, 2000. (Filed as Exhibit 4.15 to Form
8-K as filed withJune 12, 2001, by and between the
Commission on November 13, 2000,Company and incorporated herein by reference.)

4.3 Adjustable Warrant issued by Registrant to Strong River Investments,
Inc.,Cantor Fitzgerald & Co.

1.2 Sales Agreement, dated as of September 29, 2000. (FiledJune 12, 2001, by and between the
Company and Cantor Fitzgerald & Co.

4.1 Advisory Agreement, dated as Exhibit 4.16of April 11, 2001, by and between
the Company and Cantor Fitzgerald & Co.

4.2 Amendment to Form
8-KAdvisory Agreement, dated as filed withof June 12, 2001, by
and between the Commission on November 13, 2000,Company and incorporated herein by reference.)Cantor Fitzgerald & Co.

5.1 Opinion of Latham & Watkins.Watkins regarding the validity of the common
stock being registered.

23.1 Consent of Arthur Andersen LLP.

23.2 Consent of Latham & Watkins (included in Exhibit 5)5.1).

23.2 Consent of Arthur Andersen LLP.

24.1 Power of Attorney (included on thisthe signature page to this
Registration Statement)registration statement).

II-1

Item19

ITEM 17. Undertakings.UNDERTAKINGS.

(a) The undersigned registrant hereby undertakes:

(1) To file, during any period in which it offers or sells securities, a
post-effective amendment to this registration statement:

(iii) To include any material information with respect to the plan
of distribution not previously disclosed in the registration statement or any
material change to such information in the registration statement.

(2) That, for the purpose of determining any liability under the
Securities Act, each post-effective amendment shall be treated as a new
registration statement of the securities offered, and the offering of the
securities at that time to be deemed the initial bona fide offering.

(3) To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination of
the offering.

(b) The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

(c) Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.

II-2

1920
SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Irvine, State of California, on May 15,June 29, 2001.

NEOTHERAPEUTICS, INC.

By: /s/ Samuel Gulko
-----------------------------------------------------------------------------
Samuel Gulko
Senior Vice President, Finance, Chief
Financial Officer, Secretary and Treasurer

POWER OF ATTORNEY

We, the undersigned directors and officers of NeoTherapeutics, Inc., do
hereby constitute and appoint Alvin J. Glasky, Ph.D. and Samuel Gulko, or either
of them, our true and lawful attorneys-in-fact and agents, each with full power
to sign for us or any of us in our names and in any and all capacities, any and
all amendments (including post-effective amendments) to this Registration
Statement, or any related registration statement that is to be effective upon
filing pursuant to Rule 462(b) under the Securities Act of 1933, as amended, and
to file the same, with all exhibits thereto and other documents required in
connection therewith, and each of them with full power to do any and all acts
and things in our names and in any and all capacities, which such
attorneys-in-fact and agents, or either of them, may deem necessary or advisable
to enable NeoTherapeutics, Inc. to comply with the Securities Act of 1933, as
amended, and any rules, regulations, and requirements of the Securities and
Exchange Commission, in connection with this Registration Statement; and we
hereby do ratify and confirm all that the such attorneys-in-fact and agents, or
either of them, shall do or cause to be done by virtue thereof.

Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

Signature Title DateSIGNATURE TITLE DATE
- --------- ----- --------------------------------------- --------------------------------- -------------

June 29, 2001
/s/ Alvin J. Glasky Chief Executive Officer, Director May 15, 2001
- ---------------------------------- (principal executive officer)
Alvin J. Glasky, Ph.D.

/s/ Rajesh C. Shrotriya President, Chief Operating June 29, 2001
- ---------------------------------- Officer and Director
Rajesh C. Shrotriya, M.D.

/s/ Samuel Gulko Senior Vice President, Finance, May 15,June 29, 2001
- ---------------------------------- Chief Financial Officer,
Samuel Gulko Secretary, Treasurer and Director
(principal financial and
accounting officer)

/s/ Mark J. Glasky Director May 15,June 29, 2001
- ----------------------------------
Mark J. Glasky

/s/ Eric L. NelsonAnn C. Kessler Director May 15,June 29, 2001
- ----------------------------------
Eric L. Nelson,Ann C. Kessler, Ph.D.

/s/ Armin M. Kessler Director June 29, 2001
- ----------------------------------
Armin M. Kessler

S-1II-1

2021

/s/ Eric L. Nelson Director June 29, 2001
- ----------------------------------
Eric L. Nelson, Ph.D.

/s/ Carol O'Cleiracain Director May 15,June 29, 2001
- ----------------------------------
Carol O'Cleiracain, Ph.D.

/s/ Joseph Rubinfeld Director May 15, 2001
- ----------------------------------
Joseph Rubinfeld, Ph.D.

/s/ Paul H. Silverman Director May 15,June 29, 2001
- ----------------------------------
Paul H. Silverman, Ph.D., D.Sc.

S-2II-2

2122

EXHIBIT INDEX

Exhibits: DescriptionExhibit
- --------- ------------------

4.1 Letter Agreement. (Filed as Exhibit 10.20 to the Registrant's Annual
Report on form 10-K as amended, as filed with the Commission on April
17, 2001, and incorporated herein by reference.)

4.2 Adjustable Warrant issued by Registrant to Montrose Investments,
Ltd.,1.1 Sales Agreement, dated as of September 29, 2000. (Filed as Exhibit 4.15 to Form
8-K as filed withJune 12, 2001, by and between the Commission on November 13, 2000,Company
and incorporated herein by reference.)

4.3 Adjustable Warrant issued by Registrant to Strong River Investments,
Inc.,Cantor Fitzgerald & Co.

1.2 Sales Agreement, dated as of September 29, 2000. (FiledJune 12, 2001, by and between the Company
and Cantor Fitzgerald & Co.

4.1 Advisory Agreement, dated as Exhibit 4.16of April 11, 2001, by and between the
Company and Cantor Fitzgerald & Co.

4.2 Amendment to Form
8-KAdvisory Agreement, dated as filed withof June 12, 2001, by and
between the Commission on November 13, 2000,Company and incorporated herein by reference.)Cantor Fitzgerald & Co.

5.1 Opinion of Latham & Watkins.Watkins regarding the validity of the common stock
being registered.

23.1 Consent of Arthur Andersen LLP.

23.2 Consent of Latham & Watkins (included in Exhibit 5)5.1).

23.2 Consent of Arthur Andersen LLP.

24.1 Power of Attorney (included on thisthe signature page to this Registration
Statement).