| Features | Group A Placebo | Group B Solifenacin | Group C Tamsulosin | Group D Tadalafil |
| No of Patients | 29 | 32 | 31 | 29 |
| Age | 35.8 | 37.0 | 34.1 | 32 |
| M:F | 20:9 | 21:11 | 23:8 | 25:4 |
| BMI (in kg/m2) | 19.8 | 20.5 | 19.9 | 19 |
| PCNL | 9 | 8 | 7 | 7 |
| URSL | 20 | 24 | 24 | 22 |