Utilization of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with acetaminophen and codeine phosphate tablets necessitates very careful consideration of the effects over the guardian drug, codeine, as well as Lively metabolite, morphine.The most common kinds would possibly be the "Z drugs" which include zolpidem tartrate, zopiclon