Answer
Suxamethonium can raise blood potassium. In susceptible people this may trigger dangerous heart-rhythm disturbances or cardiac arrest.
Sources for this answer
- Suxamethonium Chloride 50mg/ml Solution for Injection/Infusion — 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.