A prospective double-blind, randomized, placebo-controlled study to evaluate the efficacy of silodosin 8  mg as an on-demand, reversible, nonhormonal oral contraceptive for males: a pilot study

ConclusionsSilodosin 8  mg achieved total reversible azoospermia, hence prevented unintended pregnancies in the female partners of the males who used the drug as an on-demand oral contraceptive.
Source: World Journal of Urology - Category: Urology & Nephrology Source Type: research