Effectiveness of medical expulsive therapy with the ɲ-adrenergic blocker tamsulosin for distal ureterolithiasis in adults attended in an emergency department in Chile.

Objectives: To assess the effectiveness of medical expulsive therapy with tamsulosin.

Material And Methods: Randomized double-blind controlled trial in an emergency department. We enrolled adults with uncomplicated distal ureterolithiasis and no other complaint.