Category- Allopathy
Medicine Highlights
| Uses | 1. To treat severe long-term chest pain (Angina) |
| Common Side Effects | 1. Slow or irregular heartbeats 2. High blood pressure 3. Your eyes may be more sensitive to light. |
| Additional Information | 1. Take medicine every day at the same time to maintain the drug well in the blood. 2. Do not stop the medicine usage suddenly. 3. It is used off-label for irregular heartbeats. |
| Storage | 1. The medicine should be stored at room temperature. 2. Keep away from sunlight and moisture. 3. Keep away from the reach of children |
| How to Take This Medicine | Take this medicine orally with a sip of water. |
Ranolazine Uses
Ranolazine 500 mg is an oral medicine belonging to the category of antianginal drugs and is used for the management of severe long-term chest pain.
Ranolazine side effects
More Common
- Slow or irregular heartbeats
- High blood pressure
- Your eyes may be more sensitive to light.
Less Common
- Fast or pounding heartbeats, fluttering in your chest, shortness of breath, and sudden dizziness (like you might pass out)
- Very slow heartbeats
- Severe headache, blurred vision, pounding in your neck or ears
- Racing heartbeats with dizziness, tiredness, or a lack of energy
- Chest tightness
- Shortness of breath is worse than usual.
How Ranolazine works
Ranolazine eases long‑term angina by helping the heart use energy efficiently, keeping its beat steady without overworking. This means less strain, fewer chest pain episodes, and better comfort during daily activities.
Safety Measures and Warning
Pregnancy
Pregnant women are not recommended to take ranolazine due to a lack of safety studies, and it should only be used in emergencies under a doctor’s guidance.
Breastfeeding
Ranolazine passes into breast milk. Tell your healthcare provider if you are breastfeeding or plan to breastfeed. Your healthcare provider will advise you if you should stop breastfeeding or stop taking ranolazine.
Heart Problems
People with severe or worsening heart failure should not take ranolazine, as it may seriously reduce the heart rate, which may lead to fatal consequences
Low Blood Pressure
Ranolazine can cause severe reduction in heartbeats, so people with low blood pressure are not recommended to use it. People get symptoms such as dizziness or faintness if they use it.
Ranolazine Interaction with Food Product
Avoid consuming alcohol and smoking simultaneously, as it may affect the drug’s action and show an effect on the brain, leading to severe drowsiness, sedation, and coma in severe cases.
Ranolazine Interaction with Other Medicines
Avoid taking Ranolazine 500 mg with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal:
Ranolazine Chemical Structure
IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name
N-(2,6-dimethylphenyl)-2-[4-[2-hydroxy-3-(2-methoxyphenoxy)propyl]piperazin-1-yl]acetamide
Intake routine/cycle
Daily dose
Take Ranolazine exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.
Missed Dose
If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.
Overdose
Don’t take more than 1500 mg of Ranolazine per day, as it may cause severe overdosing effects like low blood pressure, unconsciousness, sweating, difficulty breathing, and coma. If you face any of the severe effects, take him to the doctor.
Storage
- Store the medicine at room temperature
- Keep away from sunlight and moisture
- Keep out of reach of children
Directions for use
- Take ranolazine exactly as prescribed by your doctor, at the same time each day.
- Do not stop taking ranolazine without your doctor’s approval, even if you feel better.
- If you forget to take ranolazine, take it as soon as you remember. If it’s almost time for your next dose, skip the missed dose.
Ranolazine Summary
Ranolazine is an anti‑anginal heart medicine that helps prevent long‑term chest pain by making the heart use oxygen more efficiently, so it doesn’t have to work hard. It is used off label for irregular heartbeats. Common side effects from this medicine include dizziness, constipation, nausea, and headache. Patients should avoid taking grapefruit juice and certain antibiotics or antifungal medicines while taking it. People with serious liver or kidney problems should only use it under medical supervision. Taking more than 1000 mg can be dangerous, leading to very low blood pressure, fainting, or irregular heartbeat.
FAQ’s
What is the drug class of ranolazine?
Ranolazine is used for indications like severe chest pains and irregular heartbeats, belongs to the class of antianginal drugs.
What is the maximum ranolazine dose to be taken per day?
It is recommended to take 2 doses of 500 mg of ranolazine daily in two doses. so that makes it a patient can take up to 1000 mg per day
What are the side effects of ranolazine tablets?
Common side effects of ranolazine include slow heartbeat, dizziness, flashing lights, or high blood pressure.
What are the recommendations for the use of ranolazine during pregnancy?
Pregnant women are not recommended to take ranolazine, as there are no studies supporting its safety in pregnancy. So, get a recommendation from a doctor in case of emergency before using it.
Reference
- StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan–. Ranolazine. [Updated 2023 Jul 24]. Available from.
- National Center for Biotechnology Information. PubChem Compound Summary for CID 67678, Ranolazine. Bethesda (MD): National Library of Medicine (US); [updated 2025 Jan 25; cited 2026 Feb 2]. Available from.
- Mayo Clinic. Ranolazine (oral route). Rochester (MN): Mayo Foundation for Medical Education and Research; [updated 2025 Apr 30; cited 2026 Feb 2]. Available from.
- WebMD. Ranolazine (Ranexa). [Internet]. WebMD LLC; [updated 2025 Jan 12; cited 2026 Feb 2]. Available from.
- Drugs.com. Ranolazine. [Internet]. Drugs.com; [updated 2025 Jan 15; cited 2026 Feb 2]. Available from.
Authors
Siva Krishna Adithya Bhumireddy completed a Bachelor of Pharmacy from GIET School of Pharmacy, affiliated with Andhra University, and from his 3rd year of graduation, he was working as a freelance medical and publication writer. Having expertise in systematic reviews and clinical research. With his keen interest and skills in research and documentation practices, he also reviewed more than 150 manuscripts from international journals like Elsevier, Springer Nature, and Sage Journals, and all the manuscripts were indexed and appeared in PubMed, Scopus, and Web of Science databases, and he received honorary recognition letters and certificates from all of them. Siva Krishna Adithya also published a few systematic, narrative reviews and a few chapters of international expertise.