Fig. 2From: Efficacy and safety of PDE5-Is and α-1 blockers for treating lower ureteric stones or LUTS: a meta-analysis of RCTsThe comparisons between PDE5-Is and ABs for treating lower ureteric stones a Headache b Dizziness c Backache d Abnormal ejaculation Kumar, 2015: tamsulosin vs tadalafil. Kumar, 2015′: silodosin vs tadalafilBack to article page