How does ondansetron work in the body

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.

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Do not take more or less of it or take it more often than prescribed by your doctor. If you are taking the rapidly disintegrating tablet, remove the tablet from the package just before you take your dose.

To open the package, do not try to push the tablet through the foil backing of the blister. Instead, use dry hands to peel back the foil backing. Gently remove the tablet and immediately place the tablet on the top of your tongue.

The tablet will dissolve in a few seconds and can be swallowed with saliva. This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information. Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule.

Do not take a double dose to make up for a missed one. Ondansetron may cause other side effects. Call your doctor if you have any unusual problems while you are taking this medication. Keep this medication in the container it came in, tightly closed, and out of reach of children. Store the tablets and rapidly disintegrating tablets away from light, at room temperature or in the refrigerator. Store the solution in the bottle upright at room temperature and away from light, excess heat, and moisture not in the bathroom.

It is important to keep all medication out of sight and reach of children as many containers such as weekly pill minders and those for eye drops, creams, patches, and inhalers are not child-resistant and young children can open them easily.

To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location — one that is up and away and out of their sight and reach. Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them.

However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. This can help keep levels of this drug from building up too much in your body. For people with liver disease: If you have severe liver disease, you should not take more than 8 mg of ondansetron per day. However, because drugs affect each person differently, we cannot guarantee that this list includes all possible dosages.

Always speak with your doctor or pharmacist about dosages that are right for you. Ondansetron orally disintegrating tablet is used for short-term treatment. If you take too much: You could have dangerous levels of the drug in your body. Symptoms of an overdose of this drug can include:. If your symptoms are severe, call or go to the nearest emergency room right away.

How to tell if the drug is working: You should not have nausea or vomiting. If you do, it should be less severe. A prescription for this medication is refillable. You should not need a new prescription for this medication to be refilled. Your doctor will write the number of refills authorized on your prescription.

Not every pharmacy stocks this drug. When filling your prescription, be sure to call ahead to make sure your pharmacy carries it. There are other drugs available to treat your condition. Some may be better suited for you than others. Talk to your doctor about other drug options that may work for you. Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up-to-date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional.

You should always consult your doctor or other healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.

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