Answer
Overdose can cause severe and prolonged hypoglycaemia, including sweating, abnormal behaviour, drowsiness, seizures or coma. Obtain urgent medical help and take the medicine pack.
Sources for this answer
- Tolbutamide Tablets BP 500mg — 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.