Dutasteride and Hair Changes

Mechanism and Efficacy for Hair Growth

The American Urological Association notes that dutasteride inhibits both 5-alpha-reductase type I and type II, reducing dihydrotestosterone (DHT) levels in the scalp by approximately 94%, compared to 80% with finasteride 1

The American Urological Association guidelines indicate that dutasteride has a comparable adverse effect profile to finasteride, with sexual dysfunction being the most common, occurring in approximately 2-4% more patients compared to placebo 2

The American Urological Association recommends that dutasteride's effect on PSA levels, reducing them by approximately 50% after 12 months of therapy, should be considered when interpreting prostate cancer screening results, and suggests doubling the measured PSA value after 1 year of treatment to adequately assess disease progression 3, 1
The American Urological Association notes that due to dutasteride's slow onset of action, patients should be informed about a more gradual improvement in symptoms 3