The dosing of phosphodiesterase-5 inhibitors for erectile dysfunction depends on the frequency of sexual activity.

“I think it depends you know why we're putting them on and how much sex they have too you know on average people probably have sex you know partnered sex maybe once a week on average you know when we're looking looking at men in their kind of 30s and Beyond you know sometimes it can be a few more times a week than that but you know if they're having sex every day or very often then sometimes a daily dose can be useful but generally most men are on just on demand U because they're going to fall into that you know maybe about you know a few times a month category”