Last Updated: November 8, 2026

ABSTRAL Drug Patent Profile

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When do Abstral patents expire, and what generic alternatives are available?

Abstral is a drug marketed by Sentynl Theraps Inc and is included in one NDA.

The generic ingredient in ABSTRAL is fentanyl citrate. There is one drug master file entry for this compound. Five suppliers are listed for this compound. Additional details are available on the fentanyl citrate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Abstral

A generic version of ABSTRAL was approved as fentanyl citrate by HIKMA on July 11th, 1984.

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Recent Clinical Trials for ABSTRAL

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

SponsorPhase
M.D. Anderson Cancer CenterPhase 3
National Cancer Institute (NCI)Phase 3
Institute of Mountain Emergency MedicinePhase 4

See all ABSTRAL clinical trials

Paragraph IV (Patent) Challenges for ABSTRAL
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
ABSTRAL Sublingual Tablets fentanyl citrate 0.1 mg, 0.2 mg, 0.3 mg, 0.4 mg, 0.6 mg and 0.8 mg 022510 1 2014-06-19

US Patents and Regulatory Information for ABSTRAL

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-001 Jan 7, 2011 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-004 Jan 7, 2011 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-002 Jan 7, 2011 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-003 Jan 7, 2011 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-006 Jan 7, 2011 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-005 Jan 7, 2011 DISCN 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 ABSTRAL

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-004 Jan 7, 2011 6,759,059 ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-006 Jan 7, 2011 7,910,132 ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-002 Jan 7, 2011 6,759,059 ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-003 Jan 7, 2011 6,761,910 ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-004 Jan 7, 2011 6,761,910 ⤷  Start Trial
Sentynl Theraps Inc ABSTRAL fentanyl citrate TABLET;SUBLINGUAL 022510-005 Jan 7, 2011 6,761,910 ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for ABSTRAL

See the table below for patents covering ABSTRAL around the world.

Country Patent Number Title Estimated Expiration
Austria 247950 ⤷  Start Trial
Australia 6492899 ⤷  Start Trial
Australia 764473 ⤷  Start Trial
Bulgaria 105380 ⤷  Start Trial
Bulgaria 65363 ⤷  Start Trial
Brazil 9913948 composição farmacêutica para o tratamento de dor aguda por administração sublingual, uso de fentanila ou um sal farmaceuticamente aceitável da mesma, e, uso de uma composição farmacêutica essencialmente isenta de água. ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for ABSTRAL

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
0836511 CA 2006 00019 Denmark ⤷  Start Trial PRODUCT NAME: FENTANYL HYDROCHLORID
0836511 SPC/GB06/022 United Kingdom ⤷  Start Trial PRODUCT NAME: FENTANYL HYDROCHLORIDE; REGISTERED: UK EU/1/05/326/001 20060124
0901368 C300523 Netherlands ⤷  Start Trial PRODUCT NAME: FENTANYL; REGISTRATION NO/DATE: EU/2/11/127/001 20111006
1769785 C300522 Netherlands ⤷  Start Trial PRODUCT NAME: FENTANYL EN DOSERINGSAPPLICATOR; REG. NO/DATE: EU/2/11/127/001 20111006
1769785 C300521 Netherlands ⤷  Start Trial PRODUCT NAME: FENTANYL; REG NO/DATE: EU/2/11/127/001 20111006
1635783 C300653 Netherlands ⤷  Start Trial PRODUCT NAME: FENTANYL IN ELKE DOOR HET BASISOCTROOI BESCHERMDE VERSCHIJNINGSVORM; REGISTRATION NO/DATE: EU/1/10/644/001-004 20100906
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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