Compare Supplements

Approved BPH dose is 0.5 mg once daily; off-label hair-loss use mirrors the same 0.5 mg once-daily dose under a clinician. A prescription drug.

Morning

Oral soft-gel capsule (dutasteride 0.5 mg)

1 mg once daily for male pattern hair loss (Propecia); 5 mg once daily for benign prostatic hyperplasia (Proscar). A prescription drug — use under a clinician.

Any time

Oral tablet (1 mg for hair, 5 mg for BPH)

• Women who are or may become pregnant (risk to a male fetus — DHT is required for male genital development)
• Children
• Known hypersensitivity to dutasteride or other 5α-reductase inhibitors

• Strong CYP3A4 inhibitors (e.g. ritonavir, ketoconazole)
• Tamsulosin / alpha-blockers

• Women who are or may become pregnant (handling crushed/broken tablets risks feminization of a male fetus)
• Children / adolescents
• Known hypersensitivity to finasteride

• PSA testing / prostate cancer screening
• Testosterone / anabolic androgens