Answer
Posaconazole requires caution in people with QT prolongation, heart disease, slow heart rate or electrolyte disturbances and must not be combined with certain QT-prolonging medicines.
Sources for this answer
- Posaconazole Zentiva 100 mg gastro-resistant tablets — 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.