Can you swallow ondansetron

To prevent nausea after surgery, take ondansetron 1 hour before the start of surgery. This medication may be taken with or without food. However, your doctor may tell you not to eat before chemotherapy, radiation, or surgery. Take any other doses as directed by your doctor. Ondansetron may be taken up to 3 times a day for 1 to 2 days after your chemotherapy or radiation treatment is finished.

If you are taking this medication on a prescribed schedule, take it regularly in order to get the most benefit from it. To help you remember, take it at the same times each day. Dosage is based on your medical condition and response to therapy.

The dosage for children may also be based on age and weight. In patients with severe liver problems, the usual maximum dose is 8 milligrams in 24 hours. Take this medication exactly as directed. Do not take more medication or take it more often than prescribed. Ask your doctor or pharmacist if you have questions. Headache, lightheadedness, dizziness, drowsiness, tiredness, or constipation may occur.

If these effects persist or worsen, notify your doctor promptly. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. The risk increases if you are also taking other drugs that increase serotonin, so tell your doctor or pharmacist of all the drugs you take see Drug Interactions section.

Get medical help right away if you develop some of the following symptoms:. A very serious allergic reaction to this drug is unlikely, but stop taking this medication and seek immediate medical attention if it occurs.

Symptoms of a serious allergic reaction include:. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Call your doctor for medical advice about side effects. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at Before taking ondansetron, tell your doctor or pharmacist if you are allergic to it; or to other anti-nausea serotonin blockers e.

This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of:. Ondansetron may cause a condition that affects the heart rhythm QT prolongation. The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation.

Before using ondansetron, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions:. Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. Talk to your doctor about using ondansetron safely. This drug may make you dizzy or drowsy. Alcohol or marijuana cannabis can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Avoid alcoholic beverages.

Talk to your doctor if you are using marijuana cannabis. Ondansetron may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert. Get emergency medical help if you have signs of an allergic reaction: rash, hives; fever, chills, difficult breathing; swelling of your face, lips, tongue, or throat. This is not a complete list of side effects and others may occur.

Call your doctor for medical advice about side effects. Ondansetron can cause a serious heart problem, especially if you use certain medicines at the same time, including antibiotics, antidepressants, heart rhythm medicine, antipsychotic medicines, and medicines to treat cancer, malaria, HIV or AIDS. Tell your doctor about all medicines you use, and those you start or stop using during your treatment with ondansetron. Taking ondansetron while you are using certain other medicines can cause high levels of serotonin to build up in your body, a condition called "serotonin syndrome," which can be fatal.

Tell your doctor if you also use:. This list is not complete and many other drugs can interact with ondansetron. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Give a list of all your medicines to any healthcare provider who treats you. Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise.

Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient.

Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

Updated visitor guidelines. You are here Home » ondansetron oral. Top of the page. Ondansetron Hydrochloride slide 2 of 26, Ondansetron Hydrochloride,. Ondansetron Hydrochloride slide 3 of 26, Ondansetron Hydrochloride,. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. 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, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

If you miss a dose of this medicine, and you feel nauseated or you vomit, take the missed dose as soon as possible. Keep the medicine in the foil pouch until you are ready to use it. Store at room temperature, away from heat and direct light.

Do not freeze. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing. There is a problem with information submitted for this request. Sign up for free, and stay up-to-date on research advancements, health tips and current health topics, like COVID, plus expert advice on managing your health.

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