Drug induced acute pancreatitis: Does it exist?

Table 1 Classification of drug induced pancreatitis

Class Ia drugs At least 1 case report with positive rechallenge, excluding all other causes, such as alcohol, hypertriglyceridemia, gallstones, and other drugs

Class Ib drugs At least 1 case report with positive rechallenge; however, other causes, such as alcohol, hypertriglyceridemia, gallstones, and other drugs were not ruled out

Class II drugs At least 4 cases in the literature Consistent latency (75% of cases)

Class III drugs At least 2 cases in the literature No consistent latency among cases No rechallenge

Class IV drugs Drugs not fitting into the earlier-described classes, single case report published in medical literature, without rechallenge