Last Updated: June 22, 2026

METHYLNALTREXONE Drug Patent Profile


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When do Methylnaltrexone patents expire, and when can generic versions of Methylnaltrexone launch?

Methylnaltrexone is a drug marketed by Actavis Llc and Mylan Labs Ltd and is included in two NDAs.

The generic ingredient in METHYLNALTREXONE is methylnaltrexone bromide. There are three drug master file entries for this compound. One supplier is listed for this compound. Additional details are available on the methylnaltrexone bromide profile page.

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Summary for METHYLNALTREXONE
US Patents:0
Applicants:2
NDAs:2
DailyMed Link:METHYLNALTREXONE at DailyMed

US Patents and Regulatory Information for METHYLNALTREXONE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Actavis Llc METHYLNALTREXONE BROMIDE methylnaltrexone bromide SOLUTION;SUBCUTANEOUS 208112-001 Aug 26, 2024 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Actavis Llc METHYLNALTREXONE BROMIDE methylnaltrexone bromide SOLUTION;SUBCUTANEOUS 208112-002 Aug 26, 2024 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Mylan Labs Ltd METHYLNALTREXONE BROMIDE methylnaltrexone bromide SOLUTION;SUBCUTANEOUS 208592-001 May 28, 2025 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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