Answer
No. Combining PDE-5 inhibitors with nitrates can cause a dangerous fall in blood pressure.
Sources for this answer
- Isosorbide Dinitrate Tablets 20 mg — Current selected SmPCemc · Summary of Product Characteristics
- Isoket Retard 20 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.