What Is the Evidence for Finasteride Causing Harmful Effects During Pregnancy, and Should a Couple Be Concerned If the Male Partner Is Taking It?

Finasteride is contraindicated during pregnancy because of its teratogenic risks, meaning it can cause developmental abnormalities in a fetus. However, the risk of exposure through a male partner's semen is considered minimal. The main concern arises from handling crushed tablets, which can lead to direct exposure. Couples should be aware of these risks, but the likelihood of harm from a male partner taking finasteride is low if proper precautions are taken.