The FDA has approved the first generic versions of Trileptal (oxcarbazepine), an anticonvulsant drug. Generic oxcarbazepine is FDA-approved for use alone or in combination with other medications in the treatment of partial seizures in adults and children aged four years and above. Oxcarbazepine tablets in three strengths (150 milligrams, 300 milligrams and 600 milligrams) are manufactured by Roxane Laboratories Inc., Glenmark Pharmaceuticals Limited, and Sun Pharmaceutical Industries Limited. The labeling of the generic products may differ from that of Trileptal because parts of the Trileptal labeling are protected by patents and/or exclusivity.