WordNet sense 1 (a communicable infection transmitted by sexual intercourse or genital contact):

VD, venereal disease, Cupid's disease, Cupid's itch, sexually transmitted disease, social disease, venereal infection, Venus's curse

WordNet sense 2 (the quantity of an active agent (substance or radiation) taken in or absorbed at any one time):

dosage

WordNet sense 3 (street name for lysergic acid diethylamide):

acid, dot, pane, superman, battery-acid, Elvis, Zen, back breaker, loony toons, Lucy in the sky with diamonds

WordNet sense 4 (administer a drug to):

drug