• The proper dosage for acetaminophen is 500 mg, 2 PO every 8 hours.  
  • The route of administration is PO.
  • Acetaminophen is for mild to moderate pain management in a casualty that is still able to fight.
  • Contraindications include acetaminophen hypersensitivity, use with alcohol, considered relatively safe in pregnancy, if clinically indicated.
  • Potential side effects include rash, nausea, vomiting, dizziness, lethargy, diaphoresis, chills or abdominal pain with acute poisoning, elevated LFTs, hypoglycemia, and hepatorenal failure with hepatic toxicity.
  • Cholestyramine may decrease absorption. Barbiturates, carbamazepine, phenytoin, rifampin, and excessive alcohol use may increase potential for hepatotoxicity.
  • The Onset/Peak/Duration for acetaminophen is 20-45 min/1-2 hr/3-4 hr.
  • There is minimal to no mission impact. 
  • Do not give to K-9 casualties.