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When and How Do I Take It?

General considerations for when and how to take granisetron include the following:
  • The medicine comes in tablet form. It is taken by mouth, usually one hour before chemotherapy or radiation. When used for radiation, it is taken once daily, and when used for chemotherapy, it is taken once or twice a day.
  • It can be taken with or without food. However, you may need to have an empty stomach for your chemotherapy or radiation. Be sure to ask your healthcare provider if you may take granisetron with food.
  • For the medication to work properly, it must be taken as prescribed.

Granisetron Dosage Information

The dosage that your healthcare provider recommends will vary depending on a number of factors, including:
  • Whether you are having radiation or chemotherapy
  • Other medications you may be taking
  • Other medical conditions you may have.
As is always the case, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
(Click Granisetron Dosing for more information.)

Drug Interactions

Granisetron can potentially interact with a few other medicines (see Drug Interactions With Granisetron).

What If I Take an Overdose of Granisetron?

It is not known exactly what to expect from a granisetron overdose. An overdose is unlikely, as most people are given just a few tablets of granisetron at a time (due to the high cost of the medication).
If you happen to overdose on this medication, seek medical attention immediately (see Kytril Overdose).
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