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Are you currently taking Merck & Co.’s prostate drug Proscar or Propecia, the company’s drug that treats male pattern baldness on this prescription drug? New information identifying the side effects of this drug are important for you to know.

The Food and Drug Administration expanded the warning label on Proscar, Propecia, and the generic brands. The new warning came out this past April 12, 2012.

According to the Associated Press, finasteride and Propecia have been linked to sexual side affects. The expanded warning states that side effects continued after patients stopped taking the drug.

The newly expanded warning label for Propecia will say that some men who took the drug experienced libido disorders, orgasm disorders, and ejaculation disorders after they stopped taking the drug.

Proscar’s label now has included decreased libido. Both drugs now include a description of the difficulties experienced by men including cases of male infertility and poor semen quality. In these particular cases, it changed for the better or normalized after the men stopped taking the drug.

The drug Proscar was first approved in 1992 in order to treat symptoms in men who had an enlarged prostate and to reduce the chance of urinary retention. The drug Propecia was first approved in 1997 for the treatment of male pattern hair loss.

It took many years for the FDA to expand the drugs’ warning labels. However, with these new warnings both present and future patients will recognize that there are serious side effects related to taking finasteride.

If you have questions please feel free to contact us at or at (800) 641-0098.

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