About tamsulosin
Alpha-1 adrenergic blocker
Used for
- Relieves urinary symptoms from an enlarged prostate (benign prostatic hyperplasia).
Usual adult dose
Usually 0.4 mg once daily, taken after the same meal each day.
Common side effects
- Dizziness or light-headedness
- Abnormal ejaculation
- Headache
- Runny nose
Important warnings
- May cause a drop in blood pressure, especially when standing.
- Tell eye surgeons about use before cataract or glaucoma surgery.
- Not intended to treat high blood pressure.
Pregnancy
Not applicable; tamsulosin is not used to treat conditions in pregnancy.
Breastfeeding
Not applicable; tamsulosin is not used to treat conditions during breastfeeding.
Interactions
- Other alpha blockers may increase blood-pressure-lowering effects.
- Strong CYP3A4 inhibitors, such as ketoconazole, can raise tamsulosin levels.
- Cimetidine can raise tamsulosin 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 It may be incomplete or out of date.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.