What is Granisetron: Uses, Warnings & Interactions

What is Granisetron: Uses, Warnings & Interactions

Updated May 14, 2025 • Published Dec 30, 2020

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Granisetron overview

BRAND NAMES:

Kytril, Granisol

Generic Names:

Granisetron Hcl

Uses:

Treats nausea and vomiting caused by cancer treatments (chemotherapy or radiation).

Therapeutic Classes:

Antiemetic

Forms:

Tablet, Solution

How it’s taken:

By mouth

What is Granisetron used for?

What form(s) does Granisetron come in

Tablet
Solution

What are common Granisetron doses?

Tablet 1MG
Vial 1ML of 1MG/ML
Box 2 Tablets

Common Granisetron prescriptions

Granisetron HCl
2 tablets box
Granisetron HCl
1mg tablet
Granisetron HCl
1ml of 1mg/ml vial
Granisetron HCl
4ml of 4mg/4ml vial

How to take Granisetron

Your doctor will tell you how much medicine to use. Do not use more than directed. You will take this medicine only on the days you have your cancer treatment.
Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.
Oral routeIt is best to take this medicine with food or milk.
Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.
Your doctor will tell you how much medicine to use. Do not use more than directed. You will take this medicine only on the days you have your cancer treatment.
Oral routeIt is best to take this medicine with food or milk.

What to do if you miss a dose of Granisetron

Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
Keep all medicine out of the reach of children. Never share your medicine with anyone.
Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

Granisetron contraindications

You should not use this medicine if you have had an allergic reaction to granisetron.

Granisetron warnings

Make sure your doctor knows if you are pregnant or breast feeding.

Granisetron interactions

Make sure your doctor knows if you are pregnant or breast feeding.

Granisetron side effects

Serious Side Effects

Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Feeling unusually tired, weak, or anxious.
Fever.
Headache.
Lightheadedness, dizziness, or fainting.
Stomach pain, upset stomach, constipation, or diarrhea.
Unable to sleep, or feeling overly sleepy.

Less Serious Side Effects

Fever.
Chest pain.
Unable to sleep, or feeling overly sleepy.
Headache.
Feeling unusually tired, weak, or anxious.
Lightheadedness, dizziness, or fainting.
Stomach pain, upset stomach, constipation, or diarrhea.