naltrexone and Acetaminophen Interactions

Interactions between naltrexone and Acetaminophen (acetaminophen)

acetaminophen and naltrexone (Moderate Drug-Drug)

GENERALLY AVOID: Coadministration of naltrexone with other agents known to induce hepatotoxicity may potentiate the risk of liver injury. Naltrexone, especially in larger than recommended doses (more than 50 mg/day), has been associated with hepatocellular injury, hepatitis, and elevations in liver transaminases and bilirubin.

MANAGEMENT: The use of naltrexone in combination with other potentially hepatotoxic agents (e.g., alcohol; androgens and anabolic steroids; antituberculous agents; azole antifungal agents; ACE inhibitors; endothelin receptor antagonists; interferons; nucleoside reverse transcriptase inhibitors; thiazolidinediones; anticonvulsants such as carbamazepine, hydantoins, felbamate, and valproic acid; lipid-lowering medications such as fenofibrate, HMG-CoA reductase inhibitors, and niacin; herbal products such as kava and echinacea) is generally not recommended unless the potential benefit outweighs the risk. Patients treated with naltrexone should be advised to seek medical attention if they experience potential signs and symptoms of hepatotoxicity such as fever, rash, anorexia, nausea, vomiting, fatigue, right upper quadrant pain, dark urine, and jaundice. Periodic monitoring of hepatic function is advisable.