Examine People acquiring acetaminophen and codeine phosphate tablets and any CYP2D6 inhibitor for indicators and signs that will reflect opioid toxicity and opioid withdrawal when acetaminophen and codeine phosphate tablets are applied together with inhibitors of CYP2D6. Two-yr carcinogenicity scientific studies are already executed in F344/N rats and B6C3F1 mice. https://qualitypharmaceuticalsonline.com/codeine-phosphate-30mg/