Table 10

Relationship of dosing to time and success of intercourse for tadalafil 20 mg and placebo in four trials

Time after dose (hours)

Outcome

<0.5 to 4

>4 to 12

>12 to 24

>24 to 36

Percent of total attempts at intercourse

Placebo

75

15

9.0

1.7

Tadalafil 20 mg

61

23

12

3.7

Percent of successful attempts at intercourse

Placebo

74

15

8.4

3.3

Tadalafil 20 mg

60

23

13

4

Percent of attempts that were successful

Placebo

26

26

24

50

Tadalafil 20 mg

65

68

72

74

Moore et al. BMC Urology 2005 5:18   doi:10.1186/1471-2490-5-18