Last Updated: August 2, 2026

isotretinoin - Profile


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What are the generic sources for isotretinoin and what is the scope of patent protection?

Isotretinoin is the generic ingredient in nine branded drugs marketed by Sun Pharm Inds Inc, Sun Pharm, Hoffmann La Roche, Mylan Pharms Inc, Teva Pharms Usa, Actavis Labs Fl, Amneal Pharms Ny, Aurobindo Pharma, Upsher Smith Labs, Zydus Pharms, Sun Pharm Inds Ltd, and Dr Reddys Labs Ltd, and is included in eighteen NDAs. There are two patents protecting this compound and five Paragraph IV challenges. Additional information is available in the individual branded drug profile pages.

Isotretinoin has seventeen patent family members in nine countries.

Summary for isotretinoin
International Patents:17
US Patents:2
Tradenames:9
Applicants:12
NDAs:18
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for isotretinoin
Paragraph IV (Patent) Challenges for ISOTRETINOIN
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
ABSORICA Capsules isotretinoin 25 mg 021951 1 2016-05-16
ABSORICA Capsules isotretinoin 35 mg 021951 1 2015-11-25
ABSORICA Capsules isotretinoin 10 mg 021951 1 2013-06-20
ABSORICA Capsules isotretinoin 20 mg 021951 1 2013-01-07
ABSORICA Capsules isotretinoin 40 mg 021951 1 2012-12-31

US Patents and Regulatory Information for isotretinoin

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-001 May 25, 2012 AB2 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-002 May 25, 2012 AB2 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-005 Aug 15, 2014 AB2 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-003 May 25, 2012 AB2 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-006 Aug 15, 2014 AB2 RX Yes 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

Expired US Patents for isotretinoin

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-003 May 25, 2012 ⤷  Start Trial ⤷  Start Trial
Hoffmann La Roche ACCUTANE isotretinoin CAPSULE;ORAL 018662-004 Mar 28, 1983 ⤷  Start Trial ⤷  Start Trial
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-002 May 25, 2012 ⤷  Start Trial ⤷  Start Trial
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-006 Aug 15, 2014 ⤷  Start Trial ⤷  Start Trial
Sun Pharm Inds Inc ABSORICA isotretinoin CAPSULE;ORAL 021951-004 May 25, 2012 ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for isotretinoin

Country Patent Number Title Estimated Expiration
Australia 2015294993 ⤷  Start Trial
Brazil 112017001963 ⤷  Start Trial
Canada 2956831 ⤷  Start Trial
European Patent Office 3174601 ⤷  Start Trial
Japan 2017521470 イソトレチノインの経口医薬組成物 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

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