Cialis - Safe to take? lasting longer for me it all about taking my mind of it lol, aslong as you dont cum you can go for hours and only your cardio fitness will stop you lol, mine still stays up for a while after im finished also. great stuff even if you dont have erection problems (which i dont i just like it cos it improves performance lol) if you want to impress a new lass in the bedroom lol.