Paediatric pancreatitis is almost certainly underestimated, and over the last 20 years it has shown an increasing incidence of up to 3-13/100,000 cases per year.^1,2 Its classification has been developed by the international INSPPIRE Study Group, which defined the clinical-instrumental diagnostic criteria for acute, recurrent acute and chronic pancreatitis in children.³ While biliary aetiology and alcohol consumption are the main risk determinants in adults, genetic, anatomical, metabolic and toxic factors predominate in pediatrics.^4,5 Among the latter, drugs