Supernus shares soar on epilepsy drug OK

Shares of Supernus Pharmaceuticals ($SUPN) rocketed up more than 100% yesterday as word spread that the FDA had provided a tentative approval for its extended-release version of the generic epilepsy drug Topamax. The drug--to be marketed as Trokendi XR--is currently only available as a generic immediate-release treatment. Supernus says that only one issue remains: resolving marketing exclusivity on a specific patient population. Supernus shares were up 16% this morning. Story


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