Last Updated: June 24, 2026

METHENAMINE Drug Patent Profile


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When do Methenamine patents expire, and what generic alternatives are available?

Methenamine is a drug marketed by Aurobindo Pharma Ltd, Impax Labs Inc, Ingenus Pharms Llc, Jubilant Cadista, Micro Labs, and Zydus Lifesciences. and is included in six NDAs.

The generic ingredient in METHENAMINE is methenamine hippurate. There are ten drug master file entries for this compound. Twelve suppliers are listed for this compound. Additional details are available on the methenamine hippurate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Methenamine

A generic version of METHENAMINE was approved as methenamine hippurate by AUROBINDO PHARMA LTD on July 5th, 2016.

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Summary for METHENAMINE
US Patents:0
Applicants:6
NDAs:6
Drug Prices: Drug price information for METHENAMINE
DailyMed Link:METHENAMINE at DailyMed

US Patents and Regulatory Information for METHENAMINE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Aurobindo Pharma Ltd METHENAMINE HIPPURATE methenamine hippurate TABLET;ORAL 205661-001 Jul 5, 2016 AB RX No Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Jubilant Cadista METHENAMINE HIPPURATE methenamine hippurate TABLET;ORAL 217675-001 Dec 1, 2023 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Impax Labs Inc METHENAMINE HIPPURATE methenamine hippurate TABLET;ORAL 076411-001 Jun 20, 2003 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
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