Seems like he's trolling by responses and I hope so because otherwise, he is fucked.
I highly suggest making yourself puke, it may kick your high down, and you may even be able to get rid of some of the pill that's not broken down. the only thing in your favor, is that they are time release (assuming you didnt crush them). You will have *only* 80mg hitting you at a time. Still way too much.
I would go to the ER or call 911. You are more than likely going to OD - Scratch that, YOU WILL OD.
No opiate tolerance and taking 320mg is insane and stupid. Hell, you could have taken a 1/4 of one of the pills and been higher then hell. And your reasoning is because the pill is small? Jesus Christ. don't you think it would have been wise to do some research on the pills before ingesting 4? Especially since you are naive to opiates in general?
I hope you end up okay, but take this as a lesson. I'm at a loss for words, I just can't imagine any person who would take 3 pills of a well known narcotic and not even think about researching about a proper dose or anything of that matter. Pure stupidity.
This is why drug users get a bad name. Because asinine kids are asinine.