Answer
Yes. It can occasionally cause a new arrhythmia or worsen an existing one. New palpitations, marked dizziness or fainting need urgent assessment.
Sources for this answer
- Rythmodan Retard 250mg Modified Release Tablets — Current selected SmPCemc · Summary of Product Characteristics
- Disopyramide capsule 100 mg — 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.