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Candotac O 4mg/150mg Tablet

Ondansetron (4mg)+ Ranitidine (150mg)

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Product Summary :

Candotac O 4mg/150mg Tablet is an antiemetic with an acid-reducing medicine. Ondansetron blocks signals that trigger nausea and vomiting, while ranitidine reduces stomach acid. Use it only if prescribed and follow the doctor's instructions. It may cause headache, constipation or diarrhea. Seek medical advice if you experience palpitations, fainting or a severe allergic reaction.

Written By Dr. Syeda Aafia, MBA, BDS,
Reviewed By Dr. Mekhala Chandra, MD, MBBS,
Last updated on 16 Nov 2026 | 01:00 AM (IST)

₹155 MRP ₹168.758% off

(Inclusive of applicable taxes)

Gurgaon

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Get up to ₹150 cashback on a minimum order value (MOV) of ₹499 and above, valid once per customer.

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General Information

Contains

Ondansetron (4mg)+ Ranitidine (150mg)

Marketer

Candor Biotech Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Candotac O 4mg/150mg Tablet is a combination medicine used to treat gastroesophageal reflux disease (Acid reflux), acidity, nausea and vomiting. It relieves the symptoms of acidity such as indigestion, stomach pain, or irritation. It also decreases the acid production in the stomach to relieve heartburn.

Candotac O 4mg/150mg Tablet is taken without food in a dose and duration as advised by the doctor. The dose you are given will depend on your condition and how you respond to the medicine. You should keep taking this medicine for as long as your doctor recommends. If you stop treatment too early your symptoms may come back and your condition may worsen. Let your healthcare team know about all other medications you are taking as some may affect, or be affected by this medicine.

The most common side effects are diarrhea, constipation, headache, fatigue, muscle pain, dryness in mouth, and flushing of skin. Most of these are temporary and usually resolve with time. Contact your doctor straight away if you are at all concerned about any of these side effects. This medicine may cause dizziness and drowsiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. Avoid drinking alcohol while taking this medicine as it can worsen your dizziness.

Before you start taking this medicine it is important to inform your doctor if you are suffering from liver disease. Lifestyle modifications like having cold milk and avoiding hot tea, coffee, spicy food or chocolate can help you to get better results.

Uses of Candotac O Tablet

Benefits of Candotac O Tablet

Acidity
Candotac O 4mg/150mg Tablet relieves excessive acidity in your stomach which prevents heartburn and indigestion. Usually, it is used along with other medicines for management of your condition.
Continue taking it for as long as the doctor may advise you to. You need to take this medicine regularly to get the most out of it. Take a fiber-rich diet, avoid oily or spicy food and drink plenty of fluids while taking it to make sure you stay hydrated.

Nausea
Candotac O 4mg/150mg Tablet blocks the action of chemicals in the body that can make you feel or be sick. It is often used to prevent nausea and vomiting that may be caused due to some medicines or cancer treatment. This medicine helps you recover more comfortably from cancer treatments such as radiation therapy or chemotherapy. It is also effective at preventing nausea and vomiting after an operation (in adults only). The dose will depend on what you are being treated for but always take this medicine as it is prescribed.

Side effects of Candotac O 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 Candotac O

Diarrhea
Constipation
Headache
Drowsiness
Fatigue
Muscle pain
Dryness in mouth
Flushing of skin

How to use Candotac O 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. Candotac O 4mg/150mg Tablet is to be taken on an empty stomach.

How Candotac O Tablet works

Ondansetron and ranitidine which prevent nausea and vomiting. Ondansetron is an antiemetic (anti-nausea medicine). It inhibits the action of serotonin, a chemical messenger that can trigger nausea and vomiting. Ranitidine is an H2 blocker (antacid). It works by reducing the amount of acid in the stomach which helps in relief of acid-related indigestion and heartburn.

Dosage

Take Candotac O 4mg/150mg Tablet exactly as prescribed by your doctor. The dose and duration may depend on your condition. Follow any product-specific instructions regarding food as it is usually taken on an empty stomach. Do not change the dose or take it for longer than advised.

Quick tips

Candotac O 4mg/150mg Tablet is used to give relief from nausea, vomiting as well as acidity, heartburn and other discomfort associated with acid reflux.
It is advisable to take your doses about 3-4 hours before meals.
If you vomit within one hour of taking a dose, take another dose.
Avoid taking soft drinks, citrus fruits like orange and lemon, which can irritate the stomach and increase acid secretion.
Incorporate the following lifestyle changes in order to prevent acidity:
1. Make sure you eat regular meals and drink plenty of water.
2. Avoid spicy and fatty fried food.
3. Lose weight if you are obese.
4. If you are a smoker, consider giving up.
5. Don't drink too much alcohol.
6. Do not go to bed immediately after taking a meal. Sit in a relaxed position for sometimes for better digestion.

Safety advice

Alcohol

UNSAFE

Do not drink alcohol while you are taking this medicine. Candotac O 4mg/150mg Tablet may cause excessive drowsiness when taken with alcohol.

Pregnancy

CONSULT YOUR DOCTOR

Candotac O 4mg/150mg Tablet is not recommended during pregnancy as there is positive evidence of fetal risk based on animal studies. However, it may still be prescribed by a doctor in situations where the benefits outweigh the risks.

Breast feeding

CONSULT YOUR DOCTOR

Candotac O 4mg/150mg Tablet may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.

Driving

UNSAFE

Candotac O 4mg/150mg Tablet may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

CAUTION

Candotac O 4mg/150mg Tablet should be used with caution in patients with severe kidney disease. Dose adjustment may be needed.

Liver

CAUTION

Candotac O 4mg/150mg Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Frequently asked questions

What is Candotac O 4mg/150mg Tablet used for?

Candotac O 4mg/150mg Tablet contains two medicines that work differently. Ondansetron helps prevent nausea and vomiting by blocking certain signals involved in triggering the vomiting reflex. Ranitidine reduces the amount of acid produced in the stomach and may help relieve acid-related symptoms such as heartburn. Use this only if it has been prescribed for your condition.

Does Candotac O 4mg/150mg Tablet provide immediate relief from nausea and vomiting?

Candotac O 4mg/150mg Tablet helps control nausea and vomiting, but the time taken to experience relief can vary depending on the cause and severity of your symptoms. Do not take an additional dose if you do not feel better immediately. Consult your doctor if vomiting continues, worsens or prevents you from keeping fluids down.

Can Candotac O 4mg/150mg Tablet be used for acidity and acid reflux?

Candotac O 4mg/150mg Tablet reduces stomach acid and may help relieve acid-related symptoms such as heartburn. However, persistent acidity or acid reflux may have several underlying causes, and this combination should not be considered a standard treatment for gastroesophageal reflux disease (GERD) without an appropriate medical assessment.

What should I do if I vomit after taking Candotac O 4mg/150mg Tablet?

Do not automatically repeat the dose if you vomit after taking Candotac O 4mg/150mg Tablet. The amount of medicine absorbed depends on how soon vomiting occurs and other individual factors. Contact your doctor for advice before taking another dose, particularly if vomiting continues.

Can Candotac O 4mg/150mg Tablet affect the heart or cause an abnormal heartbeat?

Yes. Candotac O 4mg/150mg Tablet may affect the electrical activity of the heart and prolong the QT interval, which can sometimes lead to serious abnormal heart rhythms. The risk may be higher in people with existing heart-rhythm problems, heart failure, slow heart rate or low potassium or magnesium levels. Inform your doctor about these conditions and seek urgent medical attention if you experience palpitations, severe dizziness or fainting.

Can I take Candotac O 4mg/150mg Tablet with antidepressants or other medicines?

Inform your doctor about all medicines, supplements and herbal products you use before starting Candotac O 4mg/150mg Tablet as it may increase the risk of serotonin syndrome when taken with certain medicines that affect serotonin, including some antidepressants and tramadol. Your doctor may also need to review medicines that can affect heart rhythm to reduce the risk of interactions.

What symptoms require immediate medical attention while taking Candotac O 4mg/150mg Tablet?

Seek immediate medical attention if you experience a fast or irregular heartbeat, palpitations, fainting, severe dizziness, difficulty breathing or swelling of the face, lips or throat. These may indicate a serious heart-rhythm problem or an allergic reaction. Do not take another dose until you have received medical advice.

Fact Box

Habit Forming

Therapeutic Class

GASTRO INTESTINAL

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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: Candor Biotech Ltd
Address: Candor Biotech Limited, SCO- 66, Sector 32- C, Chandigarh-160047, India

Vendor Details

Country of origin: India

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Candotac O 4mg/150mg Tablet

Candotac O 4mg/150mg Tablet

Product Summary :

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Candotac O Tablet

Benefits of Candotac O Tablet

Side effects of Candotac O Tablet

How to use Candotac O Tablet

How Candotac O Tablet works

Dosage

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Frequently asked questions

What is Candotac O 4mg/150mg Tablet used for?

Does Candotac O 4mg/150mg Tablet provide immediate relief from nausea and vomiting?

Can Candotac O 4mg/150mg Tablet be used for acidity and acid reflux?

What should I do if I vomit after taking Candotac O 4mg/150mg Tablet?

Can Candotac O 4mg/150mg Tablet affect the heart or cause an abnormal heartbeat?

Can I take Candotac O 4mg/150mg Tablet with antidepressants or other medicines?

What symptoms require immediate medical attention while taking Candotac O 4mg/150mg Tablet?

Fact Box

Habit Forming

Therapeutic Class

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

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