About dutasteride
5-alpha-reductase inhibitor
Used for
- Treats enlarged prostate (benign prostatic hyperplasia).
- May be used with tamsulosin for enlarged prostate.
Usual adult dose
0.5 mg by mouth once daily, with or without food.
Common side effects
- Reduced sex drive or difficulty getting an erection.
- Ejaculation problems or breast tenderness and enlargement.
- Dizziness or allergic reactions, rarely.
Important warnings
- Pregnant people should not handle leaking capsules; the medicine can harm a developing male fetus.
- May lower prostate-specific antigen (PSA), affecting prostate cancer screening results.
- Do not donate blood during treatment and for six months after stopping.
- Effects on urinary symptoms may take several months.
Pregnancy
Not for use in pregnancy. Exposure can harm development of a male fetus.
Breastfeeding
Not for use by women; safety during breastfeeding is not established.
Interactions
- Verapamil, diltiazem, or other medicines that inhibit CYP3A4 may increase 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 It may be incomplete or out of date.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.