Isoniazid-induced recurrent acute pancreatitis.

Drug-induced acute pancreatitis should be considered in the differential diagnosis of acute abdomen occurring soon after the initiation of antitubercular treatment. Isoniazid-induced pancreatitis is potentially reversible: early recognition and drug withdrawal are warranted in the appropriate clinical setting. We present a case of reversible acute pancreatitis after isoniazid treatment of lymph node tuberculosis, followed by the recurrence of pancreatitis upon the reintroduction of the drug.