F orget Viagra. From the depths of male depravity comes LibidOff – a new wonder drug that will rid every heterosexual male of that most humbling of assets: his libido. In Dawson Moore’s fluent comedy presented by Three Wise Monkeys Theatre Company and Unidentified Theatre Company, a depressed scientist’s antidote to his own frustrated sexuality falls into the hands of a nutty misogynist with potentially frightening results. LibidOff is the middle play in the writer’s Bile trilogy – all revolving around a character so cartoonishly vile that he makes Frank T.J. Mackey, the dick-driven male-empowerment coach in Paul Thomas Anderson’s “Magnolia,” look like the pope. Moore’s compact, controlled dialogue skirts deliciously close to the hem of taste, and under the astute direction of Christopher Jenkins, the spunky cast of six manages to pull off a pretty formidable theatrical feat: a comedy about sex that is as febrile as it is funny.