Propecia Side Effects Attorney -  Cohen & Malad, LLP

Experienced Attorneys Fighting for Individuals with Side Effects from Propecia


In 1997, Merck gained approval from the U.S. Food and Drug Administration (FDA) to market Propecia® (finasteride) for the treatment of male pattern baldness. Propecia works inside the cells to convert androgen testosterone into 5α-dihydrotestosterone (DHT), essentially blocking androgen production in the body.  Merck claims that men who use Propecia® are likely to see an increase in the number of scalp hairs in the first year of treatment as well as a noted slowing of hair loss.

The label listed the following potential side effects from using Propecia®: erectile dysfunction, decreased libido, breast tenderness and enlargement, and depression. The label also stated that these side effects would go away once you stopped using Propecia®. More serious side effects include breast cancer and an increased risk for developing prostate cancer.

In 2008, Merck began changing Propecia® labels in many European countries after receiving numerous patient complaints of long term sexual side effects even after treatment was stopped including erectile dysfunction and decreased libido. As of June 2011, Merck has not changed its U.S. labels for Propecia® to address the potential long-term nature of reported sexual side effects.

Lawsuits against Merck have been filed in the U.S. relating to the long term negative sexual side effects, including erectile dysfunction, breast cancer, and prostate cancer as a result of ingesting Propecia®. If you or a loved one is experiencing any side effects after using Propecia® please contact Cohen & Malad, LLP to speak with one of our experienced product liability/personal injury attorneys to discuss your legal options and help you seek the compensation you deserve.