Last Updated: June 22, 2026

SILDENAFIL Drug Patent Profile


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

Sildenafil is a drug marketed by Ajanta Pharma Ltd, Alkem Labs Ltd, Amneal Pharms, Aurobindo Pharma Ltd, Chartwell Rx, Granules, Hetero Labs Ltd V, Invagen Pharms, Lupin, MSN, Novitium Pharma, Taro, Teva Pharms Usa, Tris Pharma Inc, Zydus Lifesciences, Eugia Pharma, Actavis Grp Ptc, Amneal Pharms Ny, Apotex Corp, Appco, Cadila Pharms Ltd, Jubilant Generics, Macleods Pharms Ltd, Mylan, Mylan Pharms Inc, Perrigo R And D, Reyoung, Rubicon Research, Sunshine, Teva, Teva Pharms, Torrent, Torrent Pharms Ltd, Umedica, and Watson Labs Inc. and is included in forty-nine NDAs.

The generic ingredient in SILDENAFIL is sildenafil citrate. There are twenty drug master file entries for this compound. Sixty-five suppliers are listed for this compound. Additional details are available on the sildenafil citrate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Sildenafil

A generic version of SILDENAFIL was approved as sildenafil citrate by CHARTWELL RX on November 6th, 2012.

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Summary for SILDENAFIL
US Patents:0
Applicants:35
NDAs:49
Drug Prices: Drug price information for SILDENAFIL
Drug Sales Revenues: Drug sales revenues for SILDENAFIL
What excipients (inactive ingredients) are in SILDENAFIL?SILDENAFIL excipients list
DailyMed Link:SILDENAFIL at DailyMed

US Patents and Regulatory Information for SILDENAFIL

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Teva SILDENAFIL CITRATE sildenafil citrate TABLET;ORAL 077342-001 Mar 9, 2016 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Hetero Labs Ltd V SILDENAFIL CITRATE sildenafil citrate TABLET;ORAL 203623-001 Nov 26, 2014 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Aurobindo Pharma Ltd SILDENAFIL CITRATE sildenafil citrate TABLET;ORAL 203962-002 Jun 11, 2018 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Watson Labs Inc SILDENAFIL CITRATE sildenafil citrate TABLET;ORAL 202506-003 Nov 25, 2020 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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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.