5-alpha-reductase inhibitor (type II)
Finasteride for men: indications and considerations
Some medications are licensed only for men, others have male-specific dosing patterns, and many are used across both sexes. This page covers how Finasteride (Finasteride) is used in men, in the context of its 5-alpha-reductase inhibitor (type II) indications and 1mg dosing pattern.
Finasteride in men: typical use
Finasteride contains Finasteride and is used for Finasteride is approved at 5mg per day for the treatment of benign prostatic hyperplasia in adult men, where it reduces prostate volume, improves urinary flow and reduces the risk of acute urinary ret…. The 1mg dose options reflect typical adult male dosing where applicable. Older men, men with cardiovascular disease, and men on multiple chronic medications often need adjusted doses or monitoring.
Male-specific considerations
Important considerations include cardiovascular history, prostate health, fertility plans where relevant, and interactions with common male-prescribed medications such as alpha-blockers and certain antihypertensives. Finasteride binds with high affinity to 5-alpha-reductase type II, blocking the conversion of testosterone into DHT. Most prescribers also screen for nitrate use, which is a hard contraindication for several drugs in this class.
Frequently asked questions
Is Finasteride safe for men? ▾
For most adult men without cardiovascular disease, severe liver or kidney impairment, or other significant comorbidity, Finasteride at standard 1mg is well tolerated. The prescribing information for Finasteride lists specific contraindications that should be reviewed before starting.
Does Finasteride affect testosterone or fertility? ▾
Effects on testosterone or fertility depend on the active ingredient. Some medications in 5-alpha-reductase inhibitor (type II) have neutral effects, others can affect hormone levels or sperm parameters. Men with fertility plans should discuss Finasteride with the prescriber before starting.
Products containing Finasteride
More on Finasteride
- With alcoholFinasteride and alcohol — is it safe to drink?
- With foodShould Finasteride be taken with food?
- Side effectsFinasteride side effects: common, rare and warning signs
- Dosage guideFinasteride dosage guide: how much to take and when
- OnsetHow fast does Finasteride start working?
- DurationHow long does Finasteride last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.