XenoPort to Release Fourth Quarter and Year-End Financial Results on March 11, 2013

SANTA CLARA, Calif.--(BUSINESS WIRE)--XenoPort, Inc. (Nasdaq: XNPT) announced today that it will release its fourth quarter financial results on March 11, 2013 at approximately 4:30 p.m. Eastern Time. The company will host a conference call at 5:00 p.m. Eastern Time that same day. A replay of the call will be available for one week following the event.

To access the conference call via the Internet, go to www.XenoPort.com. Please join the call at least 15 minutes prior to the start to ensure time for any software downloads that may be required.

To access the live conference call via phone, dial 1-888-275-3514. International callers may access the live call by dialing 706-679-1417. The reference number to enter the call is 19426152.

The replay of the conference call may be accessed that same day after 8:00 p.m. Eastern Time, via the Internet, at www.XenoPort.com, or via phone at 1-855-859-2056 for domestic callers, or 404-537-3406 for international callers. The reference number to enter the replay of the call is 19426152.

About XenoPort

XenoPort is a biopharmaceutical company focused on developing and commercializing a portfolio of internally discovered product candidates for the potential treatment of neurological disorders. Horizant® (gabapentin enacarbil) Extended-Release Tablets is approved in the United States for the treatment of moderate-to-severe primary restless legs syndrome (RLS) in adults and for the management of postherpetic neuralgia in adults. GlaxoSmithKline holds commercialization rights for Horizant in the United States during a transition period ending on April 30, 2013, following which XenoPort will be responsible for the further development, manufacturing and commercialization of Horizant. Regnite® (gabapentin enacarbil) Extended-Release Tablets is approved and is being marketed for the treatment of RLS in Japan. Astellas Pharma Inc. holds all development and commercialization rights for Regnite in Japan and five other Asian countries. XenoPort holds all other world-wide rights to gabapentin enacarbil. XenoPort’s pipeline of product candidates includes potential treatments for patients with spasticity, Parkinson’s disease and relapsing-remitting multiple sclerosis. To learn more about XenoPort, please visit the Website at www.XenoPort.com.

XENOPORT, Horizant and Regnite are registered trademarks of XenoPort, Inc.

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