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Piracetam

Piracetam (sold under many brand names) is a nootropic drug in the racetams group, with chemical name 2-oxo-1-pyrrolidine acetamide. It shares the same 2-oxo-pyrrolidone base structure with pyroglutamic acid. Piracetam is a cyclic derivative of GABA. In the United States, it is not approved by the US Food and Drug Administration for any medical use and it is not permitted to be sold as a dietary supplement. In the UK, piracetam is prescribed mainly for myoclonus, but is used off-label for other conditions. Evidence to support its use for many conditions is unclear.

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Product Description



Systematic (IUPAC) name
2-(2-Oxopyrrolidin-1-yl)acetamide


Trade names Breinox, Dinagen, Lucetam, Nootropil, Nootropyl, Oikamid, Piracetam and many others
AHFS/Drugs.com International Drug Names
Legal status
  • AU: S4 (Prescription only)
  • CA: Not approved
  • UK: POM (Prescription only)
  • US: Not FDA approved
Routes of administration Oral, parenteral, or vaporized


Bioavailability ~100%
Biological half-life 4–5 hr
Excretion Urinary


CAS Number 7491-74-9 
ATC code N06BX03
PubChem CID: 4843
IUPHAR/BPS 4288
ChemSpider 4677 
UNII ZH516LNZ10 
KEGG D01914 
ChEMBL CHEMBL36715 


Formula C6H10N2O2
Molecular mass 142.16 g/mol

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