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Last Updated: March 28, 2024

SILPHEN Drug Patent Profile


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

Silphen is a drug marketed by Lannett Co Inc and is included in one NDA.

The generic ingredient in SILPHEN is diphenhydramine hydrochloride. There are twenty-three drug master file entries for this compound. Fourteen suppliers are listed for this compound. Additional details are available on the diphenhydramine hydrochloride profile page.

Drug patent expirations by year for SILPHEN
Recent Clinical Trials for SILPHEN

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

SponsorPhase
Hospira, now a wholly owned subsidiary of PfizerPhase 4
Hospira, Inc.Phase 4
University of PennsylvaniaPhase 4

See all SILPHEN clinical trials

US Patents and Regulatory Information for SILPHEN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Lannett Co Inc SILPHEN diphenhydramine hydrochloride SYRUP;ORAL 072646-001 Feb 27, 1992 DISCN No No ⤷  Try a Trial ⤷  Try a Trial ⤷  Try a 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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