For individual questions , 66.5 % of men rated tadalafil treatment as ` effective/very effective ' ( Question 1 , Q1 ) vs placebo ( P = 0.011 ) , 72.6 % would ` definitely/probably recommend their treatment ' ( Q3 ; P = 0.043 ) , 71.8 % were generally ` very satisfied/satisfied with their medication ' ( Q8 ; P < 0.003 ) , and 65.0 % would ` definitely/probably continue therapy ' ( Q10 ; P = 0.035 ) .