Stimulating property of Turnera diffusa and Pfaffia paniculata extracts onthe sexual behavior of male rats

Sexually potent and sexually sluggish/impotent male rats were treated orall y with different amounts of Turnera diffusa and Pfaffia paniculata fluid ex tracts (0.25, 0.50, 1.0 ml/kg). While having no effect on the copulatory be havior of sexually potent rats, both plant extracts - singly or in combinat ion - improved the copulatory performance of sexually sluggish i impotent r ats. The highest dose of either extract (1 ml/kg) (as well as the combinati on of 0.5 ml/kg of each extract) increased the percentage of rats achieving ejaculation and significantly reduced mount, intromission and ejaculation latencies, post-ejaculatory interval and intercopulatory interval. Neither extract affected locomotor activity. These results seem to support the folk reputation of Turnera diffusa and Pfaffia paniculata as sexual stimulants.