I found this, which is interesting.
Pancreatic Involvement in Patients with Inflammatory Bowel Disease
annalsgastro.gr/index.php/annalsgastro/article/download/814/595Patients with IBD are considered to be at increased risk for developing of acute pancreatitis. Bermejo et al described an incidence of acute pancreatitis of 1.5% an incidence similar to that described by Triantafillidis et al who reported an incidence of 1.53% among all patients with IBD seen and followed up for 15 years in their institution. This incidence is more than 250 times higher compared to that expected in the normal population.
INCIDENCE OF DRUG-INDUCED PANCREATITIS IN IBD
Generally, drugs could be a definite cause of acute pancreatitis, in an incidence of 0.1-2%. In patients with IBD, responsible drugs include mainly immunosuppressives (azathioprine/merkaptopurine) and mesalamine, although cases due to corticosteroids and metronidazole have also been described.
In a recent study it was found that most of cases with
acute pancreatitis were a consequence of drug exposure namely azathioprine/ mercaptopurine and mesalazine. Of the remaining, 20.7% were idiopathic, and 12.2% were biliary. The incidence of acute pancreatitis in patients treated with Imuran/AZA/6MP was 3.1%. Female gender and the existence of CD were risk factors for Imuran/AZA/6MP-associated acute pancreatitis.