sexual stimulant

(1) Aphrodisiac Any agent that is alleged to enhance sexual performance or libido by unproven or magical means
(2) A drug that enhances sexual performance by vasoactive mechanisms—e.g., sildenafil (Viagra), which prevents cGMP degradation by cGMP specific phosphodiesterase type 5 (PDE5) in the corpus cavernosum. Increased cGMP leads to vasodilation of the intimal cushions of the helicine arteries and increased flow blood into the spongiosa of the penis causing an erection

sexual stimulant

Any drug (e.g., alcohol used in modest amounts) or pheromone that acts as an aphrodisiac for humans or animals.