If you are considering drinking iophen -c nr to get high, I highly advise against. Tonight I drank almost a whole bottle, 10mg codeine, 100mg guaifenesin per 5ml. I am currently on the toilet with terrible cramps and gas, and I'm not even high. Codeine sucks. It's a very weak narcotic, and not worth the gas you're gonna have. Terrible idea. I thought for sure if at least get a nice mellow opiate freling, but no, nothing. You're better off not drinking this shite at all. Trust me. Now I just want to go to bed but I'm bloated and farting uncontrollably from the high dose guaifenesin. You won't die from od on it, but it definitely sucks, once again trust me, I'm highly experienced with opiates, thus is one of the worst. About as weak as hydrocodone and tramadol. If you're desperate to get high this bad you're better off with just weed. I hope the next person googles this before drinking their bottle and decides again it. It will ruin your night.