Aphrodisiac refers to a number of compounds that produce heightened sexual desire and awareness in some humanoid species.
According to William T. Riker, an aphrodisiac is "something used to stimulate or enhance sexual pleasure". Data was not familiar with the term. (TNG: "Angel One")
Humans have, at various times, used aphrodisiacs including the ground horn of a rhinoceros. (ENT: "Fight or Flight")
Certain cultures consider perfume an aphrodisiac. (TNG: "Angel One")
In 2373, Quark attempted to smuggle the illegal aphrodisiac Regalian liquid crystal onto Deep Space 9. (DS9: "The Ship")
On board the Silver Blood USS Voyager, Neelix offered Tom Paris for his honeymoon with B'Elanna Torres a holoprogram of a mountain resort on the fifth moon of Cytrax, which had crickets with songs that were reputed to be an "auditory aphrodisiac". Tom turned it down, claiming that he and B'Elanna did not need aphrodisiacs. (VOY: "Course: Oblivion")
In Tom Paris' altered holonovel based on board the fictional USS Voyeur, The Doctor used a Klingon aphrodisiac on Two of Three. (VOY: "Author, Author")