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Rantac Spas Tablet is a medicine used to treat hyperacidity, abdominal pain and cramps, bloating, heartburn, flatulence, and indigestion. It works by reducing stomach acid, improving gut motility, and breaking down gas bubbles.

Written By Dr. Swati Mishra, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 15 Jan 2026 | 10:46 AM (IST)
₹42.4 MRP ₹46.8810% off 
 
 
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Rantac Spas Tablet
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Rantac Spas Tablet image
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Product introduction

Rantac Spas Tablet may be taken with or without food. Follow the prescribed dosage and duration carefully. To support its effectiveness, avoid acidic or spicy foods that can trigger discomfort. Staying hydrated and maintaining an active lifestyle can help improve digestion and reduce abdominal pain.


Common side effects of Rantac Spas Tablet include constipation, diarrhea, headache, nausea, weakness, and muscle pain. If any of these side effects persist or worsen, let your doctor know. They may be able to suggest ways to prevent the side effects or prescribe you an alternate medicine.


Before taking this medicine, let your doctor know if you have any preexisting medical conditions. Let your doctor also know about all the medicines you are taking to make sure it is safe for you. Pregnant and breastfeeding women should consult their doctor before taking this medicine.

Benefits of Rantac Tablet

Treatment of Acidity
Rantac Spas Tablet provides effective relief from hyperacidity by reducing excess stomach acid production. This helps prevent acid reflux and discomfort, allowing patients to enjoy meals without the burning sensation and irritation caused by acidity.
Treatment of Heartburn
Rantac Spas Tablet helps reduce acid reflux, preventing the painful burning sensation in the chest. This allows users to sleep better at night and go through their day without the distress of acidity-related pain.
Treatment of Indigestion
Rantac Spas Tablet improves stomach emptying and enhances digestion, reducing heaviness, nausea, and discomfort after meals. This helps users enjoy food without the worry of sluggish digestion.
Treatment of Bloating
Rantac Spas Tablet helps break down trapped gas in the digestive system, relieving pressure and the feeling of fullness. This makes eating and digestion more comfortable, preventing discomfort after meals.
Treatment of Abdominal pain
Rantac Spas Tablet relaxes the stomach muscles and improves digestion, easing discomfort and cramps, and making daily activities more comfortable. Users can go about their day without the interruption of stomach pain.
Treatment of Flatulence (gas formation)
Rantac Spas Tablet helps relieve flatulence and associated discomfort by addressing multiple causes of bloating. It helps reduce stomach acid, relaxes intestinal muscles to ease cramping, and breaks down gas bubbles for easier passage. This provides quick relief from flatulence and improves overall digestive comfort.

Side effects of Rantac 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 Rantac
  • Constipation
  • Diarrhea
  • Headache
  • Nausea
  • Muscle pain
  • Weakness

How to use Rantac 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. Rantac Spas Tablet may be taken with or without food.

How Rantac Tablet works

Rantac Spas Tablet is a combination of ranitidine, domperidone, and simethicone. Ranitidine, an H2-receptor blocker, reduces stomach acid production, preventing hyperacidity and heartburn. Domperidone, a prokinetic agent, enhances gastric motility and accelerates stomach emptying, helping with indigestion and reducing nausea. Simethicone, an antiflatulent, breaks down gas bubbles in the digestive tract, relieving bloating and flatulence. Together, these ingredients provide effective relief from acidity, abdominal cramps, bloating, and digestive discomfort, improving overall gut health.

All substitutes for Rantac Spas Tablet

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

Quick tips

  • Drinking plenty of water supports digestion and can reduce the likelihood of bloating and discomfort.
  • If your symptoms persist or worsen despite treatment, consult your doctor for a reassessment and possible adjustment in your treatment plan.
  • Regular physical activity and a balanced diet can improve digestion and overall digestive health, helping prevent discomfort.

Safety advice

Alcohol

Alcohol

CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Rantac Spas Tablet. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
Information regarding the use of Rantac Spas Tablet during pregnancy is not available. Please consult your doctor.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Information regarding the use of Rantac Spas Tablet during breastfeeding is not available. Please consult your doctor.
Driving

Driving

CONSULT YOUR DOCTOR
It is not known whether Rantac Spas Tablet alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.
Kidney

Kidney

CONSULT YOUR DOCTOR
There is limited data available on the use of Rantac Spas Tablet in patients with kidney disease. Please consult your doctor.
Liver

Liver

CONSULT YOUR DOCTOR
There is limited data available on the use of Rantac Spas Tablet in patients with liver disease.

Frequently asked questions

Rantac Spas Tablet is used for acidity, heartburn, flatulence, indigestion, and abdominal pain. For other digestive issues, consult your doctor.
Avoid trigger foods, eat smaller meals, stay hydrated, and exercise regularly to support digestion and enhance the effectiveness of Rantac Spas Tablet.
The duration depends on your symptoms and your doctor's recommendation. Follow your doctor's guidance for the appropriate treatment period.
Consult your doctor before using Rantac Spas Tablet with other medications to avoid potential interactions and ensure safe use.

Fact Box

Habit Forming

No

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: J B Chemicals and Pharmaceuticals Ltd
Address: Cnergy IT Park, 3rd floor Appa Saheb Marathe Marg, Prabhadevi, Mumbai 400025

Vendor Details

Country of origin: India
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