Men who have used Propecia to limit hair loss might have been okay speaking with their doctor about the prospect of going bald. But they may not be okay with discussing some of the reported Propecia side effects. Those side effects include sexual dysfunction, loss of libido and erectile dysfunction. Unfortunately, those side effects can potentially last for years. Despite Merck's claims that Propecia side effects resolve on their own, some men allege they suffered from sexual dysfunction for years.
Their claim may be backed up by warning labels from Europe, where Propecia's label states that the side effects could be irreversible. Worse, a study published in the Journal of Sexual Medicine (03/11) reports that up to 15 percent of men who take Propecia could suffer from side effects. Along with sexual side effects are complaints by some men that they suffered anxiety, insomnia and memory problems while taking Propecia.
Lawsuits filed against Merck, maker of Propecia, allege the company did not adequately warn patients about the severity of the potential side effects.
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The US Food and Drug Administration (FDA) issued its own warning about Propecia, highlighting a potential link between the drug and high-grade prostate cancer. As with the male breast cancer, the link was actually made between Proscar and high-grade prostate cancer, but Propecia is included in the warning.
For men who may have had difficulty just talking to a doctor about male-pattern baldness, speaking about sexual dysfunction, male breast cancer or prostate cancer could be horrifying.