Last Updated: September 24, 2026

MINIPRESS XL Drug Patent Profile


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Which patents cover Minipress Xl, and when can generic versions of Minipress Xl launch?

Minipress Xl is a drug marketed by Pfizer and is included in one NDA.

The generic ingredient in MINIPRESS XL is prazosin hydrochloride. There is one drug master file entry for this compound. Thirty-four suppliers are listed for this compound. Additional details are available on the prazosin hydrochloride profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Minipress Xl

A generic version of MINIPRESS XL was approved as prazosin hydrochloride by TEVA PHARMS on September 12th, 1988.

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Summary for MINIPRESS XL
Recent Clinical Trials for MINIPRESS XL

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Yale UniversityPhase 1/Phase 2
University of WashingtonPhase 4
Fast GrantsPhase 2

See all MINIPRESS XL clinical trials

US Patents and Regulatory Information for MINIPRESS XL

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-001 Jan 29, 1992 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-002 Jan 29, 1992 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for MINIPRESS XL

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-001 Jan 29, 1992 ⤷  Start Trial ⤷  Start Trial
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-002 Jan 29, 1992 ⤷  Start Trial ⤷  Start Trial
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-002 Jan 29, 1992 ⤷  Start Trial ⤷  Start Trial
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-002 Jan 29, 1992 ⤷  Start Trial ⤷  Start Trial
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-001 Jan 29, 1992 ⤷  Start Trial ⤷  Start Trial
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-001 Jan 29, 1992 ⤷  Start Trial ⤷  Start Trial
Pfizer MINIPRESS XL prazosin hydrochloride TABLET, EXTENDED RELEASE;ORAL 019775-001 Jan 29, 1992 ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for MINIPRESS XL

See the table below for patents covering MINIPRESS XL around the world.

Country Patent Number Title Estimated Expiration
Argentina 210937 PROCEDIMIENTO PARA LA PREPARACION DE LA FORMA ALFA CRISTALINA DE CLORHIDRATO DE 2-(4-(2-FUROIL)PIPERAZIN-1-IL)-4-AMINO-6,7-DIMETOXIQUINAZOLINA ⤷  Start Trial
Australia 2244377 ⤷  Start Trial
Australia 506937 ⤷  Start Trial
Belgium 851878 ⤷  Start Trial
Bulgaria 29724 METOD ZA POLUCHAVANE NA KRISTALNA- ALFA- FORMA NA PRAZOSIN KHIDROKHLORID (METHOD FOR OBTAINING OF CRISTAL- ALFA- FROM OF PRAZOCIN HYDROCHLORIDE) ⤷  Start Trial
Canada 1068269 FORMES CRYSTALLINES DU CHLORHYDRATE DE PRAZOZINE (CRYSTALLINE FORMS OF PRAZOS IN HYDROCHLORIDE) ⤷  Start Trial
Switzerland 618436 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

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