Abstract
A number of new esters of fluphenazine are described; among these was the 1-adamantoate, 1h, the 1st highly crystalline ester of that drug. The 1-adamantoate of pipotiazine, 2b, typically, was an oil. Following a single s.c. or i.m. injection of 25 mg/kg of either 1h or 2b, dissolved in sesame oil, each ester was a potent and long-acting inhibitor of conditioned avoidance behavior in the rat.