All About Propecia

A study showed that hair grew in thicker and/or faster.

PROPECIA grows natural hair, not just “peach fuzz.”

At the end of a 4-year study, there was an increase in the weight of hair samples taken from the men who took PROPECIA compared to hair samples taken from the men who took a placebo (sugar pill).

The effectiveness of PROPECIA was demonstrated in studies of men, aged 18 to 41, with mild to moderate hair loss at the top and middle front of the head. There is not sufficient evidence that PROPECIA works for receding hairlines at the temples.

You may see less hair loss in as little as 3 months.

You will need to take PROPECIA for as long as you want to grow or maintain your hair.

If you stop taking PROPECIA, you will likely lose the hair you have gained within 12 months of stopping treatment.

Clinical studies showed that side effects were uncommon and did not affect most men.

A small number of men had sexual side effects, with each occurring in less than 2% of men. These included less desire for sex, difficulty in achieving an erection, and a decrease in the amount of semen. These side effects went away in men who stopped taking PROPECIA because of them. In addition, these side effects decreased to 0.3% or less by the fifth year of treatment.

In general use, the following side effects have been reported: allergic reactions including rash, itching, hives, and swelling of the lips and face; problems with ejaculation; breast tenderness and enlargement; and testicular pain. You should promptly report to your doctor any changes in your breasts such as lumps, pain, or nipple discharge. Tell your doctor about these or any other side effects.