Answer
Yes, rarely. It can prolong the QT interval and cause serious arrhythmias, particularly with relevant heart disease, electrolyte abnormalities or interacting medicines.
Sources for this answer
- Erythrocin 500 Tablets — Current selected SmPCemc · Summary of Product Characteristics
- UK GovernmentUK Government · Reputable Web
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.