53 In the index

Phenylpiracetam PHEN

A stronger, stimulant-like version of an older brain supplement, developed in Russia and historically used there to help cosmonauts and soldiers handle cold and stay alert. Its evidence comes mainly from Russian studies; it lacks Western regulatory review and is banned in some sports.

Also known as Phenotropil, Carphedon, Fonturacetam, 4-Phenylpiracetam, Carphedone, Karfedon, 2-Oxo-4-phenyl-1-pyrrolidineacetamide, 1-Pyrrolidineacetamide, 2-oxo-4-phenyl-

Effects Endurance Focus

Routes Oral

Legal status Unscheduled

WADA Banned at all times

3D Molecular Structure of C₁₂H₁₄N₂O₂

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Chemistry

Formula: C12H14N2O2
Molar mass: 218.25
CAS: 77472-70-9
PubChem CID: 132441
IUPAC name: 2-(2-oxo-4-phenylpyrrolidin-1-yl)acetamide
InChIKey: LYONXVJRBWWGQO-UHFFFAOYSA-N

Reported dosing

Limited data

What has been reported in the literature and by users. This is a record of what is done, not a recommendation.

Typical dose 100 mg

Reported range 100-200 mg/day

Route Oral

Frequency Once or twice daily

Duration Ongoing (supplement use), often cycled due to reported tolerance

Approved as a prescription drug in Russia (used by cosmonauts) and banned by WADA as a stimulant; sold as an unregulated nootropic supplement in the US.

Where this comes from Russian-language clinical studies; anti-doping literature

Human data for this compound is limited. Read the figures above as a record of reported use rather than established dosing.