Opioids Does doing codiene effect how other opiates hit you?

I think I remember hearing if you do some codiene it could fuck up the buzz of other opiates if you do them within a close time frame is that true? It would explain why I didnt get much from half an Oxy 80

Hi man, that's because you're still high off the codeine, which is a full µ agonist

I wouldnt say Im high off the codeine still. I have a high opiate tolerance. I smashed 90mg of codeine and barley felt it after the initial pins and needles. I snorted half an 80 and i usually get more buzzed than I feel, and my pupils didnt get small very much. Ill save the other half for tomorrow.

Dosing 2 full-strength opiates at the same time won't "fuck up" the buzz, it will make it stronger.