Last Updated: August 21, 2026

AMBIEN Drug Patent Profile


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

Ambien is a drug marketed by Cosette and is included in two NDAs.

The generic ingredient in AMBIEN is zolpidem tartrate. There are thirty-three drug master file entries for this compound. Forty-three suppliers are listed for this compound. Additional details are available on the zolpidem tartrate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Ambien

A generic version of AMBIEN was approved as zolpidem tartrate by ACME LABS on April 23rd, 2007.

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Recent Clinical Trials for AMBIEN

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

SponsorPhase
National Institutes of Health (NIH)Phase 2
California Pacific Medical Center Research InstitutePhase 4
University of ArizonaPhase 4

See all AMBIEN clinical trials

US Patents and Regulatory Information for AMBIEN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Cosette AMBIEN zolpidem tartrate TABLET;ORAL 019908-001 Dec 16, 1992 AB RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Cosette AMBIEN CR zolpidem tartrate TABLET, EXTENDED RELEASE;ORAL 021774-001 Sep 2, 2005 AB RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Cosette AMBIEN zolpidem tartrate TABLET;ORAL 019908-002 Dec 16, 1992 AB RX Yes Yes ⤷  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

Supplementary Protection Certificates for AMBIEN

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
2236132 C300714 Netherlands ⤷  Start Trial PRODUCT NAME: ZOLPIDEM EN FARMACEUTISCH AANVAARDBARE ZOUTEN DAARVAN; NAT. REGISTRATION NO/DATE: RVG 108438 - 439 20130624; FIRST REGISTRATION: BE424286BE424295 2012180718
2236132 CA 2015 00004 Denmark ⤷  Start Trial PRODUCT NAME: ZOLPIDEM OG FARMACEUTISK ACCEPTABLE SALTE HERAF, HERUNDER ZOLPIDEMTARTRAT; NAT. REG. NO/DATE: 47607 OG 47608 20120719; FIRST REG. NO/DATE: (B BE424286 OG BE424295 20120718
2236132 92636 Luxembourg ⤷  Start Trial PRODUCT NAME: ZOLPIDEM ET SES SELS PHARMACEUTIQUEMENT ACCEPTABLES
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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