The risks of Propecia are still unfolding. For several years, men have been taking Propecia for hair loss. Merck the manufacturer of Propecia represented that a limited number of users may experience side effects including sexual dysfunction such as decreased libido, erectile dysfunction and ejaculation disorder as well as potential depression. The actual rate of sexual function may be as high as 39%. Studies in Sweden indicate that the adverse side effects often continue after discontinuation of Propecia. This persistence and/or permanence of the sexual dysfunction, depression and cognitive impairment remained undisclosed to U.S. consumers. Merck failed to include it on its label.
Men who used Propecia are claiming that Merck failed to adequately warn them about its risks. Most of these cases are being litigated in New York. Recently the wife and children of a man who took Propecia filed a claim against Merck alleging that in addition to depression, Propecia caused their father and husband to have thoughts of suicide and it led to his eventual suicide.