Comparison
Piracetam vs Oxiracetam
Piracetam
The original nootropic, developed in 1964 by Romanian chemist Corneliu Giurgea. A cyclic derivative of GABA and the founding member of the racetam family.
Oxiracetam
Water-soluble racetam known for analytical focus and logical reasoning enhancement.
| Field | Piracetam | Oxiracetam |
|---|---|---|
| Category | racetam | racetam |
| Dose range | 1200–4800mg | 800–2400mg |
| Half-life | 5h | 8h |
| Onset | 45min | 45min |
| Evidence | EVIDENCEA | EVIDENCEB |
| Safety | ●●●●● | ●●●●○ |
| Legal (US) | USUnscheduled | USUnscheduled |
| PubMed refs | 1200 | 150 |
The comparison in plain English
Auto-generated from dataPiracetam and Oxiracetam are both in the racetam category respectively. Piracetam The original nootropic, developed in 1964 by Romanian chemist Corneliu Giurgea. Oxiracetam Water-soluble racetam known for analytical focus and logical reasoning enhancement.
Bottom line
Piracetam (evidence A, safety 5/5) has a weaker evidence base than Oxiracetam (evidence B, safety 4/5). Piracetam has the slightly cleaner safety profile. For users new to either, the higher-evidence option is the safer first try.
Choose Piracetam if
Piracetam is the better fit when your goal aligns with its mechanism (Modulates AMPA and NMDA glutamate receptors and enhances acetylcholine signaling via muscarinic receptor allosteric modulation) and the dose range (1200–4800mg) suits your protocol. Half-life is 5h.
Choose Oxiracetam if
Oxiracetam is the better fit when your goal aligns with its mechanism (Modulates AMPA and NMDA receptors and stimulates release of excitatory neurotransmitters including glutamate and D-aspartate) and the dose range (800–2400mg) suits your protocol. Half-life is 8h.