The latest updates on prescription drugs and ways to save from the GoodRx medical team

Drug Shortage: Horizant

by Elizabeth Davis on April 22, 2013 at 1:12 pm

The manufacturers of restless leg syndrome and postherpetic neuralgia treatment Horizant (extended-release gabapentin) have made an announcement that the 600 mg tablet is temporarily backordered.

XenoPort, a biopharmaceutical company, originally developed the drug, and GlaxoSmithKline has been responsible for manufacturing and commercialization (advertising and distributing) of Horizant until April 30, 2013.

There’s a manufacturing delay surrounding the May 1, 2013 handoff, and it will take some time to get Horizant back into pharmacies. The current estimate for Horizant to be fully available again? Not until June 2013.

For more information before May 1, call GlaxoSmithKline at 1-888-825-5249

For more information on May 1 and after, contact XenoPort at 1-877-XENOPRT (1-877-936-6778)

The Horizant website is currently only showing the prescribing information, but there may also be more info there at a later date: http://www.horizant.com/index.html

Update: As of 5/24/2013, XenoPort has notified the FDA that the Horizant 600 mg tablet is available. It may take some time for pharmacies to restock, so the June 2013 availability date is still likely an accurate estimate.


Copyright ©2015 GoodRx, Inc.

This information is for informational purposes only and is not meant to be a substitute for professional medical advice, diagnosis or treatment. GoodRx is not offering advice, recommending or endorsing any specific prescription drug, pharmacy or other information on the site. GoodRx provides no warranty for any of the pricing data or other information. Please seek medical advice before starting, changing or terminating any medical treatment. Third party logos, trademarks, brand names and images contained on GoodRx.com are for demonstration purposes only and are owned by their respective rights holders, who are not affiliated with this Site.