Last Updated: September 25, 2026

Details for Patent: 8,114,909


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Which drugs does patent 8,114,909 protect, and when does it expire?

Patent 8,114,909 protects HORIZANT and is included in one NDA.

This patent has twenty-one patent family members in fifteen countries.

Summary for Patent: 8,114,909
Title:Treating or preventing restless legs syndrome using prodrugs of GABA analogs
Abstract:Disclosed herein are methods of using prodrugs of gamma aminobutyric acid (GABA) analogs and pharmaceutical compositions thereof to treat or prevent restless legs syndrome in humans, and pharmaceutical compositions of prodrugs of GABA analogs useful in treating or preventing restless legs syndrome.
Inventor(s):Ronald W. Barrett, Daniel M. Canafax
Assignee: XenoPort Inc , Arbor Pharmaceuticals LLC
Application Number:US10/969,196
Patent Claim Types:
see list of patent claims
Use; Dosage form;

Drugs Protected by US Patent 8,114,909

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Azurity HORIZANT gabapentin enacarbil TABLET, EXTENDED RELEASE;ORAL 022399-002 Dec 13, 2011 RX Yes No 8,114,909 ⤷  Start Trial TREATMENT OF MODERATE-TO-SEVERE PRIMARY RESTLESS LEG SYNDROME IN ADULTS ⤷  Start Trial
Azurity HORIZANT gabapentin enacarbil TABLET, EXTENDED RELEASE;ORAL 022399-001 Apr 6, 2011 RX Yes Yes 8,114,909 ⤷  Start Trial TREATMENT OF MODERATE-TO-SEVERE PRIMARY RESTLESS LEG SYNDROME IN ADULTS ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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