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Gratron Tablet

Granisetron (1mg)

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Gratron Tablet is an antiemetic medicine commonly used to control nausea and vomiting caused due to any surgery, cancer drug therapy, or radiotherapy.

Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 14 Apr 2026 | 11:35 AM (IST)

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General Information

Contains

Granisetron (1mg)

Marketer

Friska Nutraceuticals Pvt Ltd

Storage

Store below 25°C

The content is shown in English

Product introduction

Gratron Tablet will not relieve other side effects associated with cancer treatments. It also has little effect on vomiting caused by motion sickness. You should take this medicine in the dose and duration advised by your doctor. But, it is better to take this medicine at a fixed time. Remember, you should not stop taking this medicine suddenly without talking to your doctor. In case you vomit within one hour of taking a dose, then take another dose and avoid heavy meals throughout the day.

The most common side effects of taking this medicine include headache, constipation, diarrhea, and weakness. Dizziness and sleepiness may also occur, so do not drive or do anything that requires mental focus until you know how this medicine affects you. These symptoms should disappear when you stop taking the medicine but if they bother you or do not go away, your doctor may be able to suggest ways of preventing or reducing them.

Before taking this medicine, tell your doctor if you have heart or liver problems or a blockage in your stomach or intestines. Also, tell your doctor about any other medicine that you might be using, especially medicines to treat epilepsy, heart problems, cancer, and depression. These may affect, or be affected by, this medicine. If you are pregnant or breastfeeding, ask for advice from your healthcare team.

Uses of Gratron Tablet

Vomiting
Nausea
Nausea and vomiting due to chemotherapy

Benefits of Gratron Tablet

Nausea and vomiting due to chemotherapy
Gratron Tablet is used to prevent nausea and vomiting that may be caused due to some medicines or cancer treatment. It blocks the action of chemicals in the body that can make you feel or be sick. This medicine helps you recover more comfortably from cancer treatments such as radiation therapy or chemotherapy.

Side effects of Gratron Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Gratron

Weakness
Headache
Constipation
Diarrhea
Insomnia (difficulty in sleeping)

How to use Gratron Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Gratron Tablet may be taken with or without food.

How Gratron Tablet works

Gratron Tablet is an antiemetic medication. It works by blocking the action of a chemical messenger (serotonin) in the brain that may cause nausea and vomiting during anti-cancer treatment (chemotherapy) or after surgery.

All substitutes for Gratron Tablet

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

You have been prescribed Gratron Tablet for prevention of nausea and vomiting caused after surgery or due to chemotherapy and radiotherapy.
It is fast-acting and starts working within 30 minutes.
If you vomit within one hour of taking a dose, take another dose.
Avoid heavy meals and try eating small nourishing snacks throughout the day. Also, sip water regularly to help avoid dehydration.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with Gratron Tablet. Please consult your doctor.

Pregnancy

CONSULT YOUR DOCTOR

Information regarding the use of Gratron Tablet during pregnancy is not available. Please consult your doctor.

Breast feeding

CONSULT YOUR DOCTOR

Information regarding the use of Gratron Tablet during breastfeeding is not available. Please consult your doctor.

Driving

SAFE

Gratron Tablet does not usually affect your ability to drive.

Kidney

CAUTION

Gratron Tablet should be used with caution in patients with severe kidney disease. Dose adjustment may be needed.

Liver

CONSULT YOUR DOCTOR

There is limited data available on the use of Gratron Tablet in patients with liver disease.

Interaction with drugs

Taking Gratron with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Severe

Venlafaxine (Oral Route)

Watch out for symptoms such as tremors, fever, diarrhea or agitation and consult your doctor if you experience them. Factors such as old age, chronic heart issues, or low potassium levels may more frequently cause disturbance in heart rhythm, and your doctor may consider ECG monitoring in their presence. Your doctor may discontinue the medicines accordingly.

Severe

Apomorphine (Sublingual route)

Do not consume Apomorphine with Granisetron. If concurrent use is essential, please consult your doctor.

Severe

Apomorphine (Injection Route)

Do not consume Apomorphine with Granisetron. If concurrent use is essential, please consult your doctor.

Moderate

Chloroquine (Oral Route)

Careful consideration is advised when taking Chloroquine with Granisetron. Your doctor may monitor your treatment and adjust the doses as per the observations. Factors such as old age, chronic heart issues, or low potassium levels may more frequently cause disturbance in heart rhythm, and your doctor may consider ECG monitoring in their presence.

Moderate

Loperamide (Oral Route)

Careful consideration is advised when taking Loperamide with Granisetron. Your doctor may monitor your treatment and adjust the doses as per the observations. Factors such as old age, chronic heart issues, or low potassium levels may more frequently cause disturbance in heart rhythm, and your doctor may consider ECG monitoring in their presence.

Frequently asked questions

What is Gratron Tablet used for?

Gratron Tablet is an antiemetic medicine used to treat and prevent nausea or vomiting caused after any surgical procedure or due to certain medicines, stomach upset, or cancer treatment. It also prevents nausea due to motion sickness to some extent.

What are the side effects of Gratron Tablet?

The most common side effects of Gratron Tablet are sleepiness, weakness, headache, constipation and diarrhea. However, these are not usually bothersome and resolve in some time on their own. Consult your doctor, if the symptoms worry you or persist for a longer duration. Your doctor will suggest ways to cope up with these side effects and to prevent them in future.

Is Gratron Tablet safe to be used in pregnant women?

Gratron Tablet did not show any adverse effects in research studies done on animals. However, since the safety and efficiency of Gratron Tablet in pregnant women is unknown. It is not recommended to be used in women who are pregnant women or if you are planning to conceive unless prescribed by your doctor.

Is Gratron Tablet better than Ondansetron?

Gratron Tablet and Ondansetron belong to the same class of medicines, that is serotonin 5-HT3 receptor antagonists. Both these medicines help prevent nausea and vomiting effectively. However, some studies suggest that Gratron Tablet is more effective than Ondansetron. According to some reports, Gratron Tablet is comparatively well tolerated, quicker in action and alleviates nausea and vomiting relatively faster.

Does Gratron Tablet cause constipation?

Yes, Gratron Tablet may cause constipation as one of the common side effects. However, this is usually not bothersome. Taking a fiber-rich diet can enhance your digestion and avoid constipation. You may also consider taking laxatives for relief and drink plenty of water too. Avoid drinking alcohol as it may worsen your constipation. If you still face issues, please consult your doctor to know about ways to treat it.

Fact Box

Chemical Class

Indazole- 3- carboxamides

Habit Forming

Therapeutic Class

GASTRO INTESTINAL

Action Class

Serotonin 5-HT3 Receptor Antagonists

References

Granisetron. Hertfordshire: Generics [UK] Limited; 2005 [revised Nov. 2018]. [Accessed on 28 Mar. 2018] (online) Available from:
Central Drugs Standard Control Organisation (CDSCO). [Accessed 28 Mar. 2019] (online) Available from:
Granisetron hydrochloride. Berkeley Heights: Breckenridge Pharmaceutical, Inc.2024.

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Friska Nutraceuticals Pvt Ltd
Address: Buria Chowk, JGD,CO: No. 001, Ground Floor, A Wing, Chandrika Complex, Kalher, Bhiwandi, Thane – 421302

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Gratron Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

Lab tests offered by us

Why we need a prescription?

Gratron Tablet

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Gratron Tablet

Benefits of Gratron Tablet

Side effects of Gratron Tablet

How to use Gratron Tablet

How Gratron Tablet works

All substitutes for Gratron Tablet

Grandem 1 Tablet

Granirex 1mg Tablet

Grantis 1mg Tablet

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Venlafaxine (Oral Route)

Apomorphine (Sublingual route)

Apomorphine (Injection Route)

Chloroquine (Oral Route)

Loperamide (Oral Route)

Frequently asked questions

What is Gratron Tablet used for?

What are the side effects of Gratron Tablet?

Is Gratron Tablet safe to be used in pregnant women?

Is Gratron Tablet better than Ondansetron?

Does Gratron Tablet cause constipation?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

In case of any issues, contact us

Lab tests offered by us

Related/Popular tests