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finasteride

American  
[fi-nas-tuh-rahyd] / fɪˈnæs təˌraɪd /

noun

Pharmacology.
  1. a drug, C 23 H 36 N 2 O 2 , that inhibits testosterone metabolism, used in the treatment of benign prostatic hyperplasia and male pattern baldness.


Etymology

Origin of finasteride

First recorded in 1985–90; fina- (of unknown origin) + (testo)ster(one) ( def. ) + (am)ide ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Now 24 years old, he takes a stronger version of finasteride along with oral minoxidil at a low dose to stave off side effects.

From The Wall Street Journal May 1, 2026

There are two FDA-approved treatments for these patients — minoxidil and finasteride, both of which come in oral and topical forms.

From MarketWatch Feb. 25, 2026

For more than two decades, finasteride has been prescribed to millions of men seeking to slow or reverse hair loss.

From Science Daily Oct. 13, 2025

The findings show a clear trend: people who used finasteride were far more likely to experience mood disorders and suicidal thoughts than those who did not.

From Science Daily Oct. 13, 2025

Boots, Hims and Superdrug say online finasteride customers are asked to confirm that they have read and understood the possible risks.

From BBC Jan. 23, 2025

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