Editorial
Copyright ©The Author(s) 2021.
World J Gastroenterol. Sep 21, 2021; 27(35): 5796-5802
Published online Sep 21, 2021. doi: 10.3748/wjg.v27.i35.5796
Table 1 Classification system of drugs related to pancreatitis development[4,5]
Class

Class IaAt least one case report with positive rechallenge, excluding other possible causes such as alcohol, gallstones and other drugs
Class IbAt least one case report with positive rechallenge but not excluding other possible causes
Class IIAt least four cases in the literature without rechallenge but with consistent latency in greater than 75% of cases
Class IIIAt least two cases in the literature without rechallenge and consistent latency
Class IVSingle case reported in the literature not fitting the previous described classed without rechallenge