. "C0031977" . . . . "1-Pyrrolidineacetamide, 2-oxo-"@en . "Piracetam"@en . . "Pirazetam"@en . "Pyracetam"@en . "2-Pyrrolidone-N-Acetamide"@en . "Piracetam"@en . "D010889" . "Pyramem"@en . . .