Short ReportsEffects of Aframomum melegueta and Piper guineense on sexual behaviour of male ratsKamtchouing, P.a; Mbongue, G.Y.F.a; Dimo, T.a; Watcho, P.b; Jatsa, H.B.c; Sokeng, S.D.d Author Information aLaboratoire de Physiologie Animale, Faculté des Sciences, Université de Yaoundé I, Yaoundé bDépartement de Biologie et de Physiologie Animales, Faculté des Sciences, Université de Dschang, Dschang cDépartement de Biologie et physiologie Animales, Faculté des Sciences, Université de Douala, Douala dDépartement des Sciences Biologiques, Faculté des Sciences, Université de Ngaoundéré, Ngaoundéré, Cameroun Correspondence to Gisèle Y.F. Mbongue, Laboratoire de Physiologie Animale, Faculté des Sciences, Université de Yaoundé I, B.P. 812 Yaoundé, Cameroun. E-mail: [email protected] Received 23 October 2001 accepted as revised 21 April 2002 Behavioural Pharmacology 13(3):p 243-247, May 2002. Buy Abstract The effects of aqueous extracts of Aframomum melegueta and Piper guineense on the sexual behaviour of male rats were studied, considering many criteria, such as penile erection, copulatory behaviour and orientation activities towards themselves (genital grooming) and female rats (ano-genital sniffing, mounting). For 8 days different groups of rats received a daily administration of distilled water (control) or a plant extract:A. melegueta at 115 mg/kg or P. guineense at 122.5 mg/kg. Both plant extracts stimulated male sexual behaviour. In fact, A. melegueta and P. guineense significantly increased penile erection index, and the frequencies of intromission and ejaculation. These plant extracts were found to enhance the orientation of males towards females by increasing mounting and ano-genital investigatory behaviour. Results of this study showed that A. melegueta and P. guineense modified the sexual behaviour of male rats by increasing sexual arousal. © 2002 Lippincott Williams & Wilkins, Inc.