Dosage form:

Film-coated tablets 4 mg

What is Ondastover® (Ondansetron) used for?

 It is used to treat or prevent upset stomachs and throwing up.

Important notes before taking Ondastover® (Ondansetron)

• Tell your doctor or pharmacist If you have an allergy to Ondansetron or any other part of this drug.
• Tell your doctor or pharmacist if you are allergic to drugs like this one, other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
• If you have a long QT on ECG.
• If you are taking apomorphine.
• Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to ensure that it is safe to take this drug with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take this drug?

Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.

• If you have phenylketonuria (PKU), talk with your doctor. Some products have phenylalanine.
• Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.

Ondastover® (Ondansetron) Side effects:

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

• Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
• Trouble passing urine.
• Sudden chest pain or tightness.
• A type of abnormal heartbeat (prolonged QT interval) has happened with this drug. Sometimes, this has led to another type of unsafe abnormal heartbeat (torsades de pointes). Call your doctor right away if you have a fast or abnormal heartbeat, or if you pass out.
• A severe and sometimes deadly problem called serotonin syndrome may happen. The risk may be greater if you also take certain other drugs. Call your doctor right away if you have agitation; change in balance; confusion; hallucinations; fever; fast or abnormal heartbeat; flushing; muscle twitching or stiffness; seizures; shivering or shaking; sweating a lot; severe diarrhea, upset stomach, or throwing up; or a very bad headache.
• This drug may make it harder to see the signs of a bowel block in people who have had surgery in the stomach area or upset stomach and throwing up after chemo. Call your doctor right away if you have stomach pain or swelling of the stomach area.

All drugs may cause side effects. However, many people have no side effects or only minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

• Feeling tired or weak.
• Diarrhea or constipation.
• Feeling sleepy.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

What do I do if I miss a dose?

• If you take this drug on a regular basis, take a missed dose as soon as you think about it.
• If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
• Do not take 2 doses at the same time or extra doses.
• Many times, this drug is taken on an as needed basis. Do not take more often than told by the doctor.

How do I store and/or throw out this drug?

• Store at room temperature.
• Store in a dry place. Do not store in a bathroom.
• Keep in a safe place. Keep all drugs out of the reach of children and pets.
• Do not use this drug after expiry date. Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs.