Tapentadol-induced urticarial rash in a patient with acute pancreatitis.

Tapentadol, a dual-action opioid, is increasingly used for pain management in acute pancreatitis (AP). Although its common side effects are well-documented, cutaneous reactions are rare. We report a 30-year-old gentleman with AP who developed generalized urticaria following oral tapentadol use. The patient had no prior history of atopy or drug allergies. The rash resolved after discontinuation of tapentadol and administration of a short course of corticosteroids and antihistamines. Cutaneous reactions to tapentadol are extremely rare but should be recognized promptly to ensure timely management and prevent unnecessary investigations.