Answer
Seek prompt medical advice, particularly if a substantial amount was swallowed or symptoms develop. Large quantities of castor oil may cause nausea, vomiting, abdominal cramps and diarrhoea.
Sources for this answer
- Zinc and Castor Oil Ointment BP — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.