Phenylpiracetam(Phenotropyl; Phenotropil) is a phenylated derivative of the nootropic drug piracetam. It is used as a stimulant nootropic drug that can be up to 30-60 times more potent than piracetam. IC50 Value: Target: AMPA receptor allosteric modulator in vitro: N/A in vivo: In the open-field test, a significant increase in locomotor activity was observed after a single administration of R-phenotropil at doses of 10 and 50 mg/kg and S-phenotropil at a dose of 50 mg/kg. In the forced swim test, R-phenotropil induced an antidepressant effect at doses of 100 and 50 mg/kg, and S-phenotropil was active at a dose of 100 mg/kg. R-phenotropil significantly enhanced memory function in a passive avoidance response test at a dose of 1 mg/kg; the S-enantiomer did not show any activity in this test [1].

• [1]. Zvejniece L, et al. Investigation into stereoselective pharmacological activity of phenotropil. Basic Clin Pharmacol Toxicol. 2011 Nov;109(5):407-12.