2-Oxo-4-phenylpyrrolidine-1-acetic acid hydrazide;Phenylpiracetam hydrazide. Phenylpiracetam Hydrazide is a modification of the original Phenylpiracetam, which was developed in Russia in the 1980s. PPH features the addition of a hydrazide group, which enhances its bioavailability and blood absorption.

Phenylpiracetam Hydrazide is a modification of the original Phenylpiracetam, which was developed in Russia in the 1980s. PPH features the addition of a hydrazide group, which enhances its bioavailability and blood absorption.