The aim of this study is to provide evidence on the aphrodisiac property of
Eurycoma longifolia Jack. An electric grid was used as an obstruction in t
he electrical copulation cage in order to determine how much an aversive st
imulus the sexually naive male rat for both the treated with E, longifolia
lack and control groups were willing to overcome to reach the estrous recep
tive female in the goal cage. The intensity of the grid current was maintai
ned at 0.12 mA and this was the intensity in which the male rats in the con
trol group failed to crossover to reach the goal cage. Results showed that
E. longifolia Jack continued to enhance and also maintain a high level of b
oth the total number of successful crossovers, mountings, intromissions and
ejaculations during the 9-12 th week observation period. In conclusion, th
ese results further enhanced and strenghtened the aphrodisiac property of E
. longifolia lack.