Dangerous Drugs Menu

Receive a Free
Legal Consultation

  • This field is for validation purposes and should be left unchanged.

Propecia and Proscar are brand names for finasteride, a synthetic antiandrogen that prevents enzymes from converting testosterone to dihyudrotestosterone (DHT), also called androgen or male sex hormone. In other words, Propecia, Proscar and other finasterides block DHT.

It is the high levels of DHT that are believed to be responsible for an enlarged prostate as well as prostate cancer. Additionally, it is believed that DHT causes hair follicles to shrink, which leads to male pattern baldness (MPB).


In 1992, the FDA approved the use of finasteride under the brand name Proscar to treat benign prostatic hyperplasia (BPH), also referred to as benign enlargement of the prostate (BEP).

In 1997, finasteride was approved to treat male pattern baldness (MPB) and sold under the brand name Propecia.


Over the last several years, men have been reporting permanent sexual side effects, including impotence. Nevertheless, the drug’s manufacturer, Merck, only warns about the side effects as follows:

“In clinical studies for Propecia, a small number of men experienced certain sexual side effects, such as less desire for sex, difficulty in achieving an erection or a decrease in the amount of semen. Each of these side effects occurred in less than 2 percent of men and went away in men who stopped taking Propecia because of them.

Shareholder Trent Miracle, national leadership experience with Propecia lawsuits

Individual Propecia lawsuits have been filed.

Simmons Hanly Conroy is investigating claims against Propecia and its manufacturer, Merck. If you or a family member have taken this drug, we would like to hear from you. Contact Simmons Hanly Conroy today.

Client Testimonials

I lost my wife to a heart attack caused by a dangerous drug. While nothing I do will ever bring her back, the Simmons firm helped ensure that other people won’t have to suffer the same loss as me. That product is no longer on the market and the companyRead More

View More Testimonials

- Jim

182 queries. 0.840 seconds