Oxcarbazepine tablets, available in strengths of 150mg, 300mg and 600mg, are manufactured by Roxane Laboratories, Glenmark Pharmaceuticals and Sun Pharmaceutical Industries. 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.
According to the publication Drug Topics, Trileptal was 74th best selling brand-name drug in by retail dollars in the US in 2006.