Comparison
Piracetam vs Phenylpiracetam
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.
Phenylpiracetam
A phenylated derivative of piracetam 20-60x more potent. Originally developed for Soviet cosmonauts.
| Field | Piracetam | Phenylpiracetam |
|---|---|---|
| Category | racetam | racetam |
| Dose range | 1200–4800mg | 100–300mg |
| Half-life | 5h | 4h |
| Onset | 45min | 30min |
| Evidence | EVIDENCEA | EVIDENCEB |
| Safety | ●●●●● | ●●●●○ |
| Legal (US) | USUnscheduled | USUnscheduled |
| PubMed refs | 1200 | 80 |
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