i ran out of my perscribed 30 mill ir oxys. i was givin an 80 mill er oxy hat i took less than half about six hours ago.i chewed it up very well and got alot of the coating off. i just got percocet 7.5/325 watson 933's. is it ok to take four of those six hours later after the chewed up oxy 80? thanx for the help you all are amazing!