Drug name

Number of cases

Scale parameter α

(95% CI)

Shape parameter β

(95% CI)

Naftopidil

28

91.6 (41.1 - 195)

0.52 (0.38 - 0.69)

Silodosin

45

97.2 (51.2 - 179)

0.51 (0.40 - 0.63)

Tamsulosin

30

162 (90.2 - 282)

0.69 (0.50 - 0.90)