Answer
Yes, rarely. Risk is higher with existing QT prolongation, slow heart rate, low potassium or magnesium, significant heart disease, older age or other QT-prolonging medicines.
Sources for this answer
- Azithromycin 250mg film-coated tablets — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.