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Last Updated: November 4, 2024

SYMMETREL Drug Patent Profile


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Which patents cover Symmetrel, and what generic alternatives are available?

Symmetrel is a drug marketed by Endo Pharms and is included in three NDAs.

The generic ingredient in SYMMETREL is amantadine hydrochloride. There are seven drug master file entries for this compound. Thirty-two suppliers are listed for this compound. Additional details are available on the amantadine hydrochloride profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Symmetrel

A generic version of SYMMETREL was approved as amantadine hydrochloride by UPSHER SMITH LABS on August 5th, 1986.

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Summary for SYMMETREL
Drug patent expirations by year for SYMMETREL
Recent Clinical Trials for SYMMETREL

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

SponsorPhase
Columbia UniversityPhase 4
Jon Rittenberger, MDPhase 2
American Heart AssociationPhase 2

See all SYMMETREL clinical trials

US Patents and Regulatory Information for SYMMETREL

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Endo Pharms SYMMETREL amantadine hydrochloride CAPSULE;ORAL 016020-001 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Sign Up ⤷  Sign Up ⤷  Sign Up
Endo Pharms SYMMETREL amantadine hydrochloride SYRUP;ORAL 016023-002 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Sign Up ⤷  Sign Up ⤷  Sign Up
Endo Pharms SYMMETREL amantadine hydrochloride TABLET;ORAL 018101-001 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Sign Up ⤷  Sign Up ⤷  Sign Up
>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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