From experience, viagra (100mg) works well for a quick punt, prob lasts about an hour if I’m lucky, but I’m constantly hard. Doesn’t matter if I’m think about sex I’ll get hard for that hour at least, bad thing is the headaches afterwards, and pain behind eyes, which is why I don’t really use it much.
Cialis, does work as well and will last for a day and night, and maybe morning at a push, but I’m not instantly hard, if I’m not in the mood I don’t get hard with it, even when I am in the mood I need stimulation to actually get things moving, however once things are going it does stay quite hard, but not rock hard like viagra, just like a normal one. Side affects are little but weirdly enough I get a fever like symptoms after it (feeling cold and shivering) it does pass and after a good night sleep I’m back to normal.