What is ondansetron?

Ondansetron blocks the events of chemicals in the body that can trigger nausea and vo miting.

Ondansetron i s used to avoid nausea and vomiting that may be caused by surgery or by medicine to treat cancer (chemotherapy or radiation).

Ondansetron may also be used for additional purposes not listed in this medication guide.

What is the most important information we should know about ondansetron?

Do not use this medication if you are allergic to ondansetron or to like medicines such as dolasetron (Anzemet), granisetron (Kytril), or palonosetron (Aloxi).

Before taking ondansetron, tell your doctor if you have liver disease, or a personal or family history of Long QT syndrome.

Ondansetron orally disintegrating tablets may be full of phenylalanine. Tell your doctor if you have phenylketonuria (PKU).

The serious side effects of this medication contain blurred vision or temporary blindness, slow heart rate, trouble breathing, anxiety, agitation, shivering, feeling light-headed, or fainting, and urinating less than usual or not at all. Stop taking ondansetron and call your doctor at once if you have any of these side effects. Ondansetron can cause side effects that may damage your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

What should I discuss with my health care provider before taking ondansetron?

Never use this medication if you are allergic to ondansetron, to similar medicines such as dolasetron (Anzemet), granisetron (Kytril), or palonosetron (Aloxi).

Before taking ondansetron, tell your doctor if you are allergic to any drugs, or if you have:

• liver disease;
• a history of allergic reaction to any medicine; or
• a personal or family history of Long QT syndrome.

If you have any of these conditions, you may need a dose adjustment or special tests to safely take ondansetron.

FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. Ondansetron can pass into breast milk and may harm a nursing baby. Do not use this medication with no telling your doctor if you are breast-feeding a baby.

Ondansetron orally disintegrating tablets may be full of phenylalanine. Tell your doctor if you have phenylketonuria (PKU).

Related Links