Mating behavior in the male rat treated with p-chlorophenylalanine methyl ester alone and in combination with pargyline.

Abstract

The methyl-ester-hydrochloride of p-chlorophenylalanine alone (50 or 150 mg/kg i.p.) and in combination (4×100 mg/kg i.p.) with pargyline (100 mg/kg i.p.) caused a shortening of the ejaculation latencies in male rats and an increase in the number of intromissions per minute. No changes were observed in other components of the sexual behavior including intromission latency, post-ejaculatory interval and the number of mounts and intromissions preceding ejaculation.