There are 3 recent studies regarding this subject:
- Hollingsworth et al. Alpha blockers for treatment of ureteric stones: systematic review and meta-analysis.
The greatest benefit might be among those with larger stones. - Wang RC et al. Effect of Tamsulosin on Stone Passage for Ureteral Stones: A Systematic Review and Meta-analysis.
Tamsulosin significantly improves stone passage in patients with larger stones - Pourmand et al. Tamsulosin for urolithiasis: a review of the recent literature and current controversies.
Tamsulosin may also increase patient satisfaction by reducing the invasive treatment and decreasing the time to stone passage.