Answer
Excess potassium can cause nausea, tingling, weakness, confusion, paralysis, low blood pressure or dangerous heart-rhythm disturbances. Seek urgent medical help and take the medicine packaging with you.
Sources for this answer
- Potassium Chloride 7.5% w/v Syrup — 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.