not usually.at times i have.i just don't do alot coke b4 E or my pills don't hit me as hard.at times i haven't had a huge erection like if i were going to be having sex, but it's good enough for getting a blowjob,hahaha.some of my friends do so much coke they have fucked up their blood pressure so much they can't get it up all the time even when they aren't doing any.i would never let it come to that.my parts are working fine for all the abuse my body has taken.knock on wood.knock knock