Ok well I just finished that bottle of prometh/codeine in just a few days. I was aware of the compound effects of the two in terms of breathing difficulty. So I would maybe take 3 or 4 tsp. of it to feel good, normal dosage is 1 tsp.
I tried to chase the opiate feeling down to the last drop of the bottle. I knew it, I wasn't gonna feel any opiate euphoria. However, the sleep was good, and prometh is a good combo with codeine anyways, IF YOU'RE CAREFUL.... I can see the danger of mixing these two downers. I know my own tolerance well, but I was cautious not to over do a single dose (like chugging half the bottle in 1 minute). No way... I slowly sipped at it one by one, slowly had a nice, sleepy few days in a row. I didn't get shit done productivity wise, but I don't come across opiates by a phone call away, its not available anymore, at all.
Hydrocodone is way safer for starters, agreed. I have made a few friends throw up with 15mg of oxycontin before. I take a 30mg, break it into 4 pieces, making them 7.5mg~ each. My friend couldn't feel 7.5mg in an hour. So I gave him another quarter, thus upping his total dosage to 15mg. All of a sudden the first and second kicked in at the same time, and he threw up. Some people's bodies respond differently to oxycodone, and when it rains, it pours!