skip to main content

Bevacizumab Perforation — SCE Medical Oncology MCQ

Instant feedback + full explanation. One question, done properly.

HardOncological EmergenciesBevacizumab PerforationSCE Medical Oncology

Six days after irinotecan, a patient develops afebrile watery diarrhoea without neutropenia or dehydration. Which initial loperamide instruction is SmPC-concordant?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: ATake 4 mg, then 2 mg two-hourly; continue for 12 hours after the last liquid stool, maximum 48 hours

Irinotecan delayed diarrhoea uses high-dose loperamide: 4 mg at the first liquid stool, then 2 mg every two hours, continuing for 12 hours after the last liquid stool but no longer than 48 hours. Standard OTC limits are inadequate; prolonged treatment risks ileus, and prophylaxis is not advised. Fever, severe diarrhoea, dehydration or persistence beyond 48 hours changes the plan to urgent hospital assessment.

Reference: Irinotecan 20 mg/ml UK SmPC. https://www.medicines.org.uk/emc/product/100107/smpc