Researchers in Buenos Aires took the time to compile data from 12 studies regarding the side effects of hair-growth drug Propecia (finasteride). Nearly 4,000 men took part in the 12 studies, so the data is believed to be a good representation of overall side effects.
Erectile dysfunction is a known potential side effect with Propecia, and the researchers did in fact find that 1 in 80 men who take the hair-growth medication reported problems with erectile dysfunction. The full study is printed in the Archives of Dermatology.
Male pattern hair loss affects about half of all men by the age of 50, and Propecia is the only FDA-approved prescription medication taken by men to regrow hair. Therefore, Propecia is an important drug for millions of men worldwide.
In fact, the drug is so important to them, that most men who experience problems with erectile dysfunction while on Propecia decide not to discontinue using it. They must figure that they stand no chance of getting between the sheets in the first place without a fuller head of hair.
is a highly effective product for most men who take it to regrow hair.
On average, men report a 30 percent improvement in hair growth after two
years. Although results vary, Propecia has been shown to regrow hair in
66 percent of men, stop hair loss in 33 percent of men, and to be
ineffective in only 1 percent of men.
This highly effective product can also potentially produce a decrease in sex drive or a decrease in the amount of semen, but men report these side effects very rarely.
All sexual side effects associated with Propecia subside after the product is discontinued, so men do not need to worry about long-term sexual side effects. Only about 2 percent of men who take Propecia complain of any sexual side effect at all, so the odds are strongly in favor of a man to not have these unwanted problems.
Finasteride works because it decreases the presence of dihydrotestosterone (DHT) in the scalp. DHT is a byproduct of the male hormone testosterone, and it’s the primary cause of hair loss. When DHT is present, it can shrink hair follicles until they are unable to produce hair.
Despite its relatively rare sexual side effects, usage of Propecia figures to be on the increase due to the growth of the Baby Boomers generation and the middle-aged in America.