Report of Foreign Issuer (6-k)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of December 2019

Commission File Number: 001-31995

MEDICURE INC.

(Translation of registrant's name into English)

2-1250 Waverley Street

Winnipeg, MB Canada R3T 6C6

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes o No x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 8a72____.

EXHIBIT LIST

Exhibit	Title

99.1	News Release dated December 5, 2019 - Medicure Files Patent Infringement Action

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Medicure Inc.
	(Registrant)


Date: December 5, 2019	By:	/s/ Dr. Albert D. Friesen
		Dr. Albert D. Friesen
		Title: CEO

Exhibit 99.1

Medicure Files Patent Infringement Action

WINNIPEG, Dec. 5, 2019 /CNW/ - Medicure Inc. ("Medicure") (TSXV: MPH, OTC: MCUJF), a cardiovascular pharmaceutical company, today announces that its subsidiary, Medicure International Inc., has filed a patent infringement action against Nexus Pharmaceuticals, Inc. ("Nexus") in the U.S. District Court for the Northern District of Illinois, alleging infringement of U.S. Patent No. 6,770,660 ("the '660 patent").

The patent infringement action is in response to Nexus' filing of an abbreviated new drug application ("ANDA") seeking approval from the U.S. Food and Drug Administration ("FDA") to market a generic version of AGGRASTAT^® (tirofiban hydrochloride) injection before the expiration of the '660 patent.

The '660 patent is listed in FDA's Orange Book for AGGRASTAT^®. Medicure will vigorously defend the '660 patent and will pursue the patent infringement action against Nexus and all other legal options available to protect its product.

AGGRASTAT^® is a platelet aggregation inhibitor indicated to reduce the rate of thrombotic cardiovascular events (combined endpoint of death, myocardial infarction, or refractory ischemia/repeat cardiac procedure) in patients with non-ST elevation acute coronary syndrome (NSTE-ACS).

About Medicure

Medicure is a pharmaceutical company focused on the development and commercialization of therapies for the U.S. cardiovascular market. The present focus of the Company is the marketing and distribution of AGGRASTAT^® (tirofiban hydrochloride) injection, ZYPITAMAG™ (pitavastatin) tablets and the ReDS™ device in the United States, where they are sold through the Company's U.S. subsidiary, Medicure Pharma Inc. For more information on Medicure please visit www.medicure.com.

To be added to Medicure's e-mail list, please visit:
http://medicure.mediaroom.com/alerts

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Cision View original content:http://www.prnewswire.com/news-releases/medicure-files-patent-infringement-action-300970393.html