Ranolazine is a medicine used mainly to treat chronic angina (long-term chest pain caused by reduced blood flow to the heart).
Uses of Ranolazine
It helps to:
- Reduce chest pain (angina)
- Improve ability to exercise or walk longer
- Lower the number of angina attacks
- Reduce the need for nitroglycerin tablets/sprays
Doctors often use it when chest pain is not fully controlled by other heart medicines.
How it works
Ranolazine helps the heart work more efficiently and improves oxygen use in heart muscle cells without greatly lowering blood pressure or heart rate.
Common side effects
- Dizziness
- Constipation
- Nausea
- Headache
- Weakness
Important precautions
Ranolazine can affect the heart rhythm in some people, so doctors may monitor:
- ECG/EKG
- Kidney function
- Liver function
Drug interactions
Ranolazine can interact with several medicines, including:
- Some antibiotics
- Antifungal medicines
- Certain heart medicines
- Some cholesterol medicines
INR relation
Ranolazine does not usually raise INR directly, but if you are taking blood thinners like warfarin together with other medicines, INR monitoring may still be needed.
If you want, I can also explain:
- the usual dosage,
- best time to take it,
- or whether it is safe with your current medicines.