Rankings / Cognitive — Nootropics
Phenylpiracetam (Phenotropil)
Cognitive · Racetam
Tier B-
What this is
Developed for Soviet cosmonauts. Users report distinct stimulant-like focus and physical performance — unlike other racetams. Rapid tolerance (within days) limits chronic use. Banned in sports due to amphetamine-like profile.
Mechanism
Phenyl-substituted piracetam; weak DAT/NET inhibition; stimulant-like profile; cold tolerance effects; banned by WADA as stimulant
Dose & route
100-200 mg PO 1-2x daily; cycle due to tolerance
Citations
- https://pubmed.ncbi.nlm.nih.gov/17514174/
- https://pubmed.ncbi.nlm.nih.gov/26401098/
- https://www.wada-ama.org/en/prohibited-list
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