Answer
No. It is ongoing symptom-control treatment, not a rescue medicine; follow the prescribed angina-attack plan and call 999 if pain does not settle as directed.
Sources for this answer
- Ranolazine Aspire 375mg Prolonged-Release 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.