Epilepsia
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To evaluate the long-term efficacy and tolerability of adjunctive levetiracetam (LEV) in patients with uncontrolled idiopathic generalized epilepsy (IGE). ⋯ Adjunctive LEV (range 1,000-4,000 mg/day) demonstrated efficacy as a long-term treatment for primary generalized seizures in children, adolescents, and adults with IGE, and was well tolerated.