About dutasteride
5-alpha-reductase inhibitor
Used for
- Treats symptoms of enlarged prostate (benign prostatic hyperplasia).
- May reduce the risk of urinary retention and prostate surgery.
Usual adult dose
0.5 mg by mouth once daily, alone or with tamsulosin.
Common side effects
- Reduced sex drive
- Erection or ejaculation problems
- Breast tenderness or enlargement
- Dizziness
Important warnings
- Not for use by women or children.
- Pregnant people should not handle leaking capsules; dutasteride can harm a male fetus.
- May lower PSA blood-test results and affect prostate cancer screening.
- Capsules should be swallowed whole; leaking contents can irritate skin.
Pregnancy
Not for use. Exposure may harm development of a male fetus.
Breastfeeding
Not indicated for use in women; safety during breastfeeding is not established.
Interactions
- Verapamil or diltiazem may increase dutasteride levels.
- Some antifungals, such as ketoconazole, may increase dutasteride levels.
- Rifampin may reduce dutasteride levels.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.