Finasteride

Generic Name: finasteride

5-alpha Reductase Inhibitor [EPC]Over-the-Counter (OTC)

Brand Names:

Finasteride

Finasteride is a synthetic 4-azasteroid compound and specific inhibitor of steroid Type II 5-alpha-reductase, an intracellular enzyme that converts testosterone into dihydrotestosterone (DHT).

Overview

Finasteride is a synthetic 4-azasteroid compound and specific inhibitor of steroid Type II 5-alpha-reductase, an intracellular enzyme that converts testosterone into dihydrotestosterone (DHT).

Uses

Indicated for treatment of symptomatic benign prostatic hyperplasia (BPH) in men with enlarged prostate to improve symptoms, reduce the risk of acute urinary retention, and reduce the risk of the need for surgery. Also indicated with alpha-blocker doxazosin to reduce BPH symptom progression.

Dosage

One tablet (5 mg) taken once a day for monotherapy or combination therapy with doxazosin. May be administered with or without meals.

Side Effects

Most frequent drug-related adverse reactions reported at 1% or greater include: impotence, decreased libido, decreased ejaculate volume, breast enlargement, breast tenderness and rash.

Interactions

No drug interactions of clinical importance have been identified.

Warnings

May increase the risk of high-grade prostate cancer. Reduces PSA levels by approximately 50%, so any confirmed PSA increase should be evaluated. Females should not handle crushed or broken finasteride tablets when they are pregnant. Not for pediatric patients or females.

Pregnancy

Finasteride is contraindicated in pregnant females. May cause abnormalities of external genitalia in male fetus. Pregnant females should not handle crushed or broken tablets due to absorption risk.

Storage

Store at 20 to 25C (68 to 77F). Protect from light and keep container tightly closed.

Frequently Asked Questions

What is Finasteride used for?

Indicated for treatment of symptomatic benign prostatic hyperplasia (BPH) in men with enlarged prostate to improve symptoms, reduce the risk of acute urinary retention, and reduce the risk of the need for surgery. Also indicated with alpha-blocker doxazosin to reduce BPH symptom progression.

What are the side effects of Finasteride?

Most frequent drug-related adverse reactions reported at 1% or greater include: impotence, decreased libido, decreased ejaculate volume, breast enlargement, breast tenderness and rash.

Can I take Finasteride during pregnancy?

Finasteride is contraindicated in pregnant females. May cause abnormalities of external genitalia in male fetus. Pregnant females should not handle crushed or broken tablets due to absorption risk.

What are the important warnings for Finasteride?

May increase the risk of high-grade prostate cancer. Reduces PSA levels by approximately 50%, so any confirmed PSA increase should be evaluated. Females should not handle crushed or broken finasteride tablets when they are pregnant. Not for pediatric patients or females.

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Medical Disclaimer

This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.