finasteride, Proscar (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

STORAGE: Finasteride should be stored at room temperature in a tight light resistant container.

PRESCRIBED FOR: Finasteride is used to treat symptoms of BPH. Finasteride is approved for use with the alpha-blocker, doxazosin, to reduce the progression of symptoms of BPH.

DOSING: Finasteride is metabolized mainly by the liver, and caution should be used in patients with liver dysfunction. Finasteride may be taken with or without food.

DRUG INTERACTIONS: Drug interactions are generally not a problem.

PREGNANCY: Finasteride causes abnormal development of the sexual organs of the male fetus. Therefore, women who are pregnant or are likely to be pregnant should not handle crushed or broken finasteride tablets in order to prevent absorption through the skin.

NURSING MOTHERS: Finasteride is not prescribed for women.

SIDE EFFECTS: Side effects are rare but can include impotence and decreased sex drive. Finasteride should not be used by women, children, or male partners of women trying to become pregnant. Finasteride should not be used until a thorough prostate examination has been done to exclude cancer, stricture, or infection in the gland. Rarely, cases of male breast cancer have been reported.

Reference: FDA Prescribing Information


Last Editorial Review: 8/12/2011



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Pill Finder Tool

Need help identifying pills and medications?
Use the pill identifier tool on RxList.


Back to Medications Index