Levetiracetam potentiates the antidyskinetic action of amantadine in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned primate model of Parkinson's disease. - Hill,M.P.; Ravenscroft,P.; Bezard,E. (J Pharmacol Exp Ther, 2004)