Five N-isobutylamides, one 2-methylbutylamide and one 2-phenylethylamide
were identified. The orally administered extract had a dose dependent positive effect on mounting
frequency, intromission frequency and ejaculation frequency and the most significant effects (p < 0.05)
were observed at 150 mg/kg treatment, even after a lapse of 7 and 14 days of discontinuance of drug
treatment. A dose dependent effect was also observed on the FSH, LH and testosterone serum levels.