You should not use Kytril if you are allergic to granisetron or to similar medicines such as dolasetron (Anzemet), ondansetron (Zofran), or palonosetron (Aloxi).
Before taking Kytril, tell your doctor if you have liver disease, a heart rhythm disorder, an electrolyte imbalance (such as low levels of potassium or magnesium in your blood), or a personal or family history of Long QT syndrome.
If you have any of these other conditions, you may need a dose adjustment or special tests to safely take Kytril:
- liver disease;
- a heart rhythm disorder;
- an electrolyte imbalance (such as low levels of potassium or magnesium in your blood); or
- a personal or family history of Long QT syndrome.
FDA pregnancy category B. Kytril is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. It is not known whether granisetron passes into breast milk or if it could harm a nursing baby. Do not use Kytril without telling your doctor if you are breast-feeding a baby.
Kytril is usually started up to 1 hour before chemotherapy. Tell your doctor if you forget to take the medication within the specified amount of time before your procedure.
There may be other drugs that can interact with Kytril. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.