In studies of granisetron to prevent nausea and vomiting due to chemotherapy, up to 88 percent of people who took the drug experienced no vomiting, and up to 63 percent had no nausea within the first 24 hours after chemotherapy.
Granisetron has also been studied for the prevention of nausea and vomiting due to radiation. In these studies, granisetron significantly reduced the chance of vomiting.
When and How to Take Granisetron
General considerations for when and how to take granisetron include the following:
- Granisetron comes in tablet form and oral solution (liquid) 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.
- Granisetron 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 dose of granisetron 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 granisetron dose unless your healthcare provider specifically instructs you to do so.
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