How long does ranexa take to work

Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine. If you miss a dose of this medicine, skip the missed dose and go back to your regular dosing schedule.

Do not double doses. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing. If you will be taking this medicine for a long time, it is very important that your doctor check you at regular visits for any problems or unwanted effects that may be caused by this medicine.

Blood tests may be needed to check for unwanted effects. John's wort. This medicine can cause a change in the heart rhythm called prolongation of the QT interval. This condition may change the way your heart beats and can cause palpitations or fainting spells.

Check with your doctor right away if you start having any of these symptoms. This medicine may cause acute kidney failure in some patients with severe kidney disease.

Check with your doctor right away if you have the following symptoms: agitation, confusion, decreased urine output, depression, dizziness, headache, hostility, irritability, lethargy, muscle twitching, nausea, rapid weight gain, seizures, stupor, swelling of the face, ankles, or hands, or unusual tiredness or weakness. This medicine may cause some people to become dizzy, lightheaded, drowsy, or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or not alert.

Grapefruit and grapefruit juice may increase the effects of ranolazine by increasing the amount of medicine in the body. You should not eat grapefruit or drink grapefruit juice while you are taking this medicine.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription over-the-counter [OTC] medicines and herbal or vitamin supplements. Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:.

Other side effects not listed may also occur in some patients. Ranolazine for angina Ranexa In this article About ranolazine for angina Before taking ranolazine How to take ranolazine Getting the most from your treatment Can ranolazine cause problems? Common ranolazine side-effects these affect less than 1 in 10 people What can I do if I experience this?

Feeling dizzy or weak Do not drive and do not use tools or machines while affected. Please let your doctor know about any dizziness as your dose may need adjusting Headache Drink plenty of water and ask your pharmacist to recommend a suitable painkiller.

If the headaches continue, let your doctor know Constipation Eat a well-balanced diet and drink plenty of water Feeling sick nausea or being sick vomiting Eat simple meals - avoid rich or spicy food. If this continues let your doctor know as your dose may need adjusting. If you have any questions about this medicine ask your pharmacist. Are you protected against flu? Further reading and references.

Join the discussion on the forums. Health Tools Feeling unwell? Assess your symptoms online with our free symptom checker. Start symptom checker. Do not drive and do not use tools or machines while affected.

Please let your doctor know about any dizziness as your dose may need adjusting. Drink plenty of water and ask your pharmacist to recommend a suitable painkiller. If the headaches continue, let your doctor know. Your body should adjust to Ranexa within a few days, but your symptoms may continue if your dose is not high enough. Your doctor can increase your dosage of Ranexa if it is safe for you. Do not take more Ranexa than what is prescribed for you before discussing it with your doctor.

If you find that your symptoms are still not improving after an increased dose, your doctor may need to find a new drug for you to use instead. In conjunction with a healthy diet and appropriate physical activity, medication therapy can help so What should I know before taking ranolazine?