Medicines in the same class as Novo Nordisk’s popular weight-loss therapy Wegovy may carry an increased risk of pancreatitis, intestinal blockage, and stomach paralysis compared to an older obesity drug, according to a study published on Thursday. For every 1,000 users of drugs with the same active ingredient as Wegovy, nearly five developed pancreatitis compared to one of every 1,000 users of bupropion-naltrexone, the active ingredients in the weight-loss drug Contrave, according to a report in the JAMA medical journal.