Exhibit 99.3
October 16, 2020
Alberta Securities Commission
British Columbia Securities Commission
Manitoba Securities Commission
Ontario Securities Commission
Saskatchewan Securities Commission
Autorite des marches financiers
New Brunswick Securities Commission
Nova Scotia Securities Commission
Prince Edward Island Securities Commission
Securities Commission of Newfoundland and Labrador
Dear Sirs/Mesdames:
Re: Medicure Inc.
Change of Auditor Notice dated 2020/10/16
Pursuant to National Instrument 51-102 (Part 4.11), we have read the above-noted Change of Auditor Notice and confirm our agreement with the information contained in the Notice pertaining to our firm.
Yours sincerely,
cc: The Board of Directors, Medicure Inc.