Medical News Today -- Vimpat(R) (lacosamide) C-V, a new antiepileptic drug (AED), will be available in U.S. pharmacies by the first week of June 2009. Vimpat was approved by the U.S. FDA in the fall of 2008 for the use as an add-on therapy for the treatment of partial-onset seizures in people 17 years and older with epilepsy.