If any side effects develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Propecia. Due to the drug's effect on male babies, women should avoid Propecia if there is any chance that they may be pregnant. Do not use Propecia if it gives you an allergic reaction, or if you've ever had an allergic reaction to its chemical twin, Proscar. If there's even a possibility that they're pregnant, women should avoid handling a crushed or broken Propecia tablet for fear of absorbing some of the active ingredient through the skin.
Whole tablets are safe to handle thanks to a protective outer coating.
Use Propecia with caution if you have liver problems. Propecia lowers readings of the PSA screening test for prostate cancer. If you're scheduled to have your PSA level checked, make sure the doctor knows you're taking Propecia. Possible food and drug interactions when taking this medication Return to top No significant drug interactions have been reported. Special information if you are pregnant or breastfeeding Return to top Avoid even touching the active ingredient in Propecia if there's a chance that you're pregnant.