Tamsulosin

400 micrograms once daily. Helps pass distal ureteric stones 5–10 mm and before a trial without catheter.

Alpha-1 blockerReviewed October 2026
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Dose

400 micrograms once daily after the same meal each day.

  • Ureteric stone 5–10 mm: up to 4 weeks.
  • Before trial without catheter: 2–3 days before removal.

Cautions

  • Dizziness and low BP on standing (first dose); retrograde ejaculation.
  • Tell the eye surgeon before cataract surgery (floppy iris).

Frequently asked questions

Does tamsulosin help kidney stones pass?

It helps distal stones of 5–10 mm pass; small stones under 5 mm usually pass anyway.

Used in these guides

Sources

  1. Drugs.com: Tamsulosin dosage

Doses on this page are typical doses from the sources above. Always confirm with a current drug reference, the product leaflet and your hospital protocol, especially in children, pregnancy and kidney or liver disease.