Ranexa: Medication Details

What is Ranexa Ranexa is the brand name under which pharmaceutical companies drug known as Ranolazine. It belongs to the class of drugs called antianginal, non-nitrates.  Doctors use this medication with other medicines to let them work more effectively. The doctors prescribe Ranexa to treat chronic angina (chest pain) and other conditions as they thinkRead More


What is Ranexa?

Ranexa, also known as Ranolazine, is a medication belonging to the class of drugs called antianginal, non-nitrates. It is prescribed by doctors to treat chronic angina (chest pain) and other related conditions. Ranexa works by improving blood pressure and helping the heart function properly. This medication is available in oral form and can only be obtained with a valid prescription from a doctor.

Important Information

Ranexa is often used in combination with other medications such as ACE inhibitors, angiotensin receptor blockers, beta-blockers, and nitrates to achieve the best results. It is important to take all prescribed medicines as directed by your doctor. Regular check-ups and blood tests may be necessary to monitor any potential side effects or complications. Do not adjust your dosage without consulting your doctor.

What to know before taking Ranexa?

Avoid taking Ranexa if you are allergic to it or any of its components, or if you have liver cirrhosis. Certain medications can interact dangerously with Ranexa, so it is important to avoid using them simultaneously. Your doctor should not prescribe Ranexa if you are currently taking any of the following medications:

  • Clarithromycin
  • Nefazodone
  • Products containing St. John’s Wort
  • Antifungal medicines
  • HIV or AIDS medication
  • Tuberculosis medicines
  • Medicines used to treat seizures

Prior to taking Ranexa, inform your doctor if you have or have had any of the following medical conditions:

  • Heart rhythm disorder
  • Liver disease
  • Kidney disease
  • Symptoms of long QT syndrome (personal or family history)

Pregnant women and breastfeeding mothers should consult their doctor before using this medication.

How to take Ranexa?

Take Ranexa exactly as prescribed by your doctor. Follow all instructions provided on the prescription label and medication guide carefully. Do not exceed the recommended dosage and maintain consistency throughout the treatment. If you do not experience any improvement in your condition, consult your doctor. Keep the medication out of reach of children and store it at room temperature, away from heat and moisture. After completing the treatment, consult your pharmacist for proper disposal of any leftover medication.

Ranexa dosage

The dosage of Ranexa prescribed by your doctor will depend on various factors, including:

  • Age and weight
  • Symptoms
  • Severity of the condition
  • Other medical conditions
  • Other medications being taken
  • Individual response to the initial dose

The doctor may adjust the dosage based on specific medical conditions.

Dosage for chronic angina

Oral extended-release tablets:

For adults:

500 mg twice a day, with the possibility of adjusting the dosage if deemed necessary. The maximum dosage can reach up to 1000 mg twice a day.

For children:

The dosage for children will be determined by the doctor after a thorough medical examination.


If you experience discomfort or accidentally take an excessive amount of Ranexa, consult your doctor and seek immediate medical assistance. You can contact the poison helpline at 1-800-222-1222. Do not ignore these symptoms, as they can be potentially dangerous:

  • Nausea or vomiting
  • Numbness
  • Tingling
  • Dizziness or drowsiness
  • Double vision
  • Confusion
  • Fainting

What to avoid while using Ranexa?

While taking Ranexa, be cautious as it may impair your thinking and reaction time. Avoid activities that require alertness and attention, such as driving. Additionally, Ranexa can interact with grapefruit or grape juice, leading to unwanted side effects.

Ranexa side effects

Common side effects of Ranexa may include:

  • Nausea
  • Constipation
  • Headaches
  • Dizziness


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