Rantac Syrup: Uses, Side Effects, Dosages & Price

Rantac Syrup: Uses, Side Effects, Dosages & Price post thumbnail image

Rantac syrup belongs to the category of Antacids and is prescribed for the treatment of concerns related to the gastrointestinal system. The medicine is manufactured by JB Chemicals and Pharmaceutical Limited. It is an over-the-counter medicine; however, it should be used o after consulting a medical practitioner to reduce interaction risk.

Composition           Ranitidine
UsesPeptic ulcer, Zollinger-Ellison syndrome and gastric ulcer
Side-effectsNausea, vomiting and dizziness
PrecautionsPeople with liver and kidney disease should avoid medicine.

The medicine contains Ranitidine as its main ingredient, which is an antacid. It neutralized acid in the stomach and helps in the treatment of ulcers.

Uses and Benefits of Rantac Syrup:

Rantac is used in the prevention and treatment of the following conditions and symptoms.

  • Duodenal ulcer: It is defined as peptic ulcer that occurs in the first part of small intestine. Rantac is used in the treatment of duodenal ulcers as well as prevents its recurrence.
  • Gastric ulcer: The ulcers are open sores that develop on the stomach lining. Rantac is used in the temporary treatment of benign gastric ulcers. The medicine is also provided as maintenance therapy once the ulcers have healed.
  • Gastroesophageal Reflux disease:  In the condition, excessive production of acid irritates the food pipe. Rantac helps in the treatment of such a condition.
  • Erosive Esophagitis: It is defined as inflammation in the esophagus. In this condition, the food pipe is eroded because of prolonged acid reflux. Rantac is used in the treatment of erosive esophagus.
  • Hyper-secretory Condition: The condition is defined as excesses production of acid in the stomach. Rantac is used in the treatment of symptoms of such condition.
  • Zollinger-Ellison Syndrome: The syndrome is defined as a condition of overproduction of acid resulting in peptic ulcers. Rantac helps relieve symptoms of this condition.

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Side Effects of Rantac Syrup:

Apart from the intended effects, consumption of Rantac may result in side effects. Side effects may vary from person to person depending on the medical condition and ongoing medications.

  • Acute headache
  • Dizziness
  • inability to concentrate
  • Nausea
  • vomiting
  • Stomach pain
  • pain in the lower abdomen
  • Mental confusion
  • Difficulty in breathing
  • Gynecomastia

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Common Dosages of Rantac Syrup:

The prescribed dosage of the Rantac syrup is dependent on the medical condition that is being treated, as well as on the severity of the aforementioned medical condition. It also depends on the age and gender of the patient. 

  • Missed Dose : The medicine should be taken as soon as one remembers. However, if it is the time of the next dose then normal schedule should be continued. In no case, the medicine should be taken in overdose.
  • Overdose : A medical practitioner should be consulted without any delay as it may result in adverse effects.

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Composition and Nature of Rantac Syrup:

Ranitidine: It belongs to the class of Histamine receptor antagonist. It works by reducing and regulating the production of acid in the stomach.

How to use Rantac Syrup?

  • Rantac should be taken as per the dosage prescribed by a medical practitioner.
  • The dosage should be measured accurately using a measuring device and not with a household tablespoon.
  • The medicine can be taken with or without food. But usually, it is advised to consume it with food to avoid the risk of upset stomach.
  • The medicine should be consumed at bedtime, once a day.

How Rantac Syrup Works?

The action of the Rantac syrup is based on the ability of its main active component ranitidine to block the production of the hydrochloric acid in the stomach. It works by regulating the production of the acid in the stomach, which helps in the treatment of indigestion and related conditions like heartburn and acid reflux.

Related Warnings/Precautions- When to avoid Rantac Syrup?

  • Pregnancy:  The medicine should not be consumed by pregnant women, if not necessary. A doctor should be consulted and benefits as well as risks should be discussed beforehand.
  • Breastfeeding: Use of Rantac should be avoided by breastfeeding women unless asked to do so. It is advised to consult a doctor and calculate risks and benefits before consuming the medicine.
  • Nicotine use: Use of Nicotine should be avoided during the course of treatment with Rantac syrup; as it poses the risk of adverse effects.
  • Pediatric use: Extreme caution should be practiced while providing Rantac to children as it increases the risk of adverse effects.
  • Risks and benefits should be discussed with a medical practitioner before administering the medicine to children.
  • Chronic heartburn: If an individual is experiencing heartburn for more than 3 months or the condition worsens, then it is advised to consult a medical practitioner. In such case appropriate dose adjustment or replacement of the medicine is required.
  • Pneumonia: Use of Rantac syrup may develop the risk of pneumonia. If symptoms such as fever, chest pain, the presence of yellow or green mucus in cough, breathing difficulty are experienced then a medical practitioner should be consulted immediately.
  • Vitamin deficiency: Rantac may interfere with the absorption process of vitamin B12, if used for a longer period of time. A doctor may prescribe appropriate supplement or recommend dietary changes depending on the clinical condition.

Rantac Syrup Interactions:

Use of Rantac syrup in case of certain medications and diseases may result in an interaction. The interaction may lead to the reduction of effectiveness of either of the medicines or worsening of the present condition.

In order to avoid such circumstances, it is advised to inform the doctor about the drugs as well as clinical conditions, in advance. 

Here is a list of possible interactions, where the use of Rantac should be avoided or practiced with caution.

Drug interactions: 

The use of Rantac along with several drugs may result in drug interactions. The interaction may lead to neutralization of effects of either of the medicine or worsening of the present condition. 

A doctor should be consulted before using two medicines at the same time.

Here is a list of drugs that tend to interact:

  • Antidiarrheal agents
  • Antifungal medicines
  • Anticoagulants

Alcohol interactions: 

The interaction of the Rantac syrup with alcohol is found to decrease or absolutely nullify the effect of the medicine. Also, Rantac syrup can decrease the speed of breakdown of alcohol, thereby increasing its level in the bloodstream of the patient. This keeps the patient inebriated for a long. 

Diseases interactions:

Rantac, if taken in case of certain diseases, may interact with the diseases and result in undesired effects. The undesired effects include worsening of the present condition or the development of some medical condition.

To avoid such circumstances, it is advised to inform the doctor about all existing as well as the history of medical conditions.

Here is a list of conditions reported to interact with Rantac:

  • Liver disease: Extreme caution should be practiced by patients suffering from liver diseases as it increases the risk of adverse effects. It is advised to closely monitor functioning of liver. A medical practitioner may recommend dose adjustment on the basis of the medical condition of the patient.
  • Kidney disease: It is advised to practice caution by patients suffering from kidney diseases as Rantac poses risk of adverse effects. Functioning of the kidney should be monitored closely and dosage should be adjusted on the basis of clinical condition.

Rantac Syrup Contraindications:

The medicine should be avoided in case of certain health conditions as the use of the medicine worsen the existing condition.

Here is a list of conditions when the medicine should be avoided:

  • Gastro-intestinal diseases: The medicine should not be used by be people with active gastro-intestinal diseases as the interaction may lead to gastrointestinal bleeding. It is advised to replace Rantac with a suitable substitute to avoid any complications.
  • Porphyria: Rantac should not be consumed by people suffering from porphyria. Porphyria is a disorder that results from build-up of certain chemicals associated with red blood cell proteins. It is a hereditary disease and is found to be rare.
  • Allergy: Use of Rantac should be avoided by people with history of allergy to Rantac or its ingredient.

Substitutes of Rantac Syrup:

Possible alternatives for the Rantac syrup include medicines that have similar composition to that of the Rantac syrup. Given below is a list of possible alternatives for the Rantac syrup:

  • Ranidom PD – manufactured by Mankind Pharma Ltd
  • Peptiran 75mg tablet/syrup – manufactured by Ajanta Pharma Ltd
  • Rantop Syrup – manufactured by Aristo Pharmaceuticals Ltd
  • Peptiran 75 mg tablet/syrup – manufactured by Ajanta Pharma Ltd
  • Ibiran Syrup – manufactured by Indiabulls Pharmaceuticals Ltd

Rantac Syrup Variants:

  • Rantac 150 tablets
  • Rantac 25 mg injection
  • Rantac OD 300 tablet CR
  • Rantac 300 mg tablet

Rantac Syrup Price in India:

Rantac SyrupINR 76.16

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Medicine that should not be taken with Rantac Syrup:

  • Itraconazole
  • Fluconazole
  • Metformin
  • Voglibose
  • Acarbose
  • Phenytoin
  • Gliclazide
  • Glimepiride

How to store Rantac Syrup?

  • Rantac should be stored at a temperature between 2 °C to 30 °C (36°F to 86°F).
  • The medicine should not be exposed to heat and light.
  • It should not be kept at a place of moisture such as bathroom and sink.
  • The place of storage should be away from the reach of children and pets.
  • The medicine should not be poured in a drain or flushed.


1) What is the use of Rantac?

Ans: Rantac is found to be very effective in reducing the amount of acid produced in the stomach. Hence, it also helps prevent acid-related disorders such as acid reflux disease and heartburn.

2) When we should take Rantac?

Ans: Rantac should be taken at bedtime. It is found to be effective for acid ingestion and heartburn. The medicine should be taken 30-60 minutes before eating food or drinking any beverages.

3) Is it sage to consume Rantac during pregnancy?

Ans: Yes, it is safe for consumption by pregnant women. However, it is advised to consult a medical practitioner beforehand.

4) Is it safe to consume Rantac while breastfeeding?

Ans: Yes, it is safe to consume during breastfeeding as it is used for heartburn. 

5) Is Rantac good for gas?

Ans: Yes, Rantac is used in the treatment of heartburn, extra gas such as bloating, discomfort in the gut, and belching.

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