(S)-2-(2-oxopyrrolidin-1-yl)butanamide-D6; (?S)-?-Ethyl-2-oxo-1-pyrrolidineacetamide-d6; (-)-Levetiracetam-d6; Keppra-d6; Levesam 500-d6; UCB-L 059-d6
(S)-2-(2-oxopyrrolidin-1-yl)butanamide-D6; (?S)-?-Ethyl-2-oxo-1-pyrrolidineacetamide-d6; (-)-Levetiracetam-d6; Keppra-d6; Levesam 500-d6; UCB-L 059-d6