Finasteride Dosage

The information at is not a substitute for medical advice. ALWAYS consult your doctor or pharmacist.

Usual Adult Dose for:

Additional dosage information:

Usual Adult Dose for Benign Prostatic Hyperplasia

Recommended dose: 5 mg orally once a day

-Dosing is the same both in monotherapy and in combination therapy.

Usual Adult Dose for Androgenetic Alopecia

For the treatment of male pattern hair loss (androgenetic alopecia) in men only. (Safety and efficacy have been demonstrated in men between 18 to 41 years of age with mild to moderate hair loss of the vertex and anterior mid scalp area):

Recommended Dosage: 1 mg orally once a day

-Daily use for 3 months or more is necessary before benefit is observed. Continued use is recommended to sustain benefit.
-Withdrawal of treatment leads to reversal of effect within 12 months.

Renal Dose Adjustments

No adjustment necessary

Liver Dose Adjustments

Use with caution


-Safety and efficacy have not been established in patients younger than 18 years.
-Consult WARNINGS section for additional precautions.


Data not available

Other Comments

Administration advice:
-Finasteride may be administered with or without food.
-Crushed or broken finasteride tablets should not be handled by women who are or may potentially be pregnant.

-Finasteride is not indicated for use in women.
-Finasteride is not approved for the treatment of prostate cancer.
-5-alpha reductase inhibitors reduce serum PSA levels by approximately 50%, even in the presence of prostate cancer. Health professionals should therefore be aware of how to monitor and interpret PSA levels in patients taking 5-alpha reductase inhibitors.
-Prior to the start of treatment with finasteride, the risk of high-grade prostate cancer should be weighed against the benefits of 5-alpha reductase inhibitor therapy.