Safety

General information, not medical advice

Your prescriber and the leaflet in your pack know your situation. This page does not.

  • Follow your prescriber and the leaflet
  • Don't start, stop, or change a dose on your own
  • Doses and warnings differ by country and product
Facts checked by a personSourcesFull disclaimer

Rantac Tablet: Uses, Dosage, Side Effects, Precautions and Alternates

· 4 min read

Rantac Tablet: Uses, Dosage, Side Effects, Precautions and Alternates
Generic nameRanitidine
Drug classH2 antagonists
FormsTablet, Injection, Syrup
Rantac Tablet: Uses, Dosage, Side Effects, Precautions and Alternates product

Quick overview

Rantac Tablet contains Ranitidine, a medicine belonging to the H2 antagonist class. It works by reducing the amount of acid produced in the stomach, helping to treat and prevent stomach ulcers, GERD, and other acidity-related problems. It is available as a tablet, injection, and syrup.

What is Rantac Tablet

Rantac Tablet is a medicine that contains Ranitidine. It is used to reduce the amount of acid produced in the stomach, helping to treat and prevent stomach ulcers, GERD, and other acidity-related problems.

Rantac Tablet uses

  • Acidity
  • Peptic Ulcer
  • Heartburn
  • GERD
  • Zollinger Ellison syndrome
  • Stomach Gas
  • Hernia
  • Stomach Pain
  • Bad Breath
  • Laryngitis
  • Gastric and duodenal ulcers
  • Erosive Esophagitis
  • Hypersecretory Condition
  • Dyspepsia

Benefits of Rantac Tablet

  • Provides quick relief from acidity and heartburn
  • Promotes healing of stomach and intestinal ulcers
  • Helps prevent ulcer recurrence
  • Reduces acid reflux symptoms and discomfort
  • Can be used for both treatment and prevention of acid-related problems

How Rantac Tablet works

This medicine works by reducing the amount of acid produced in the stomach, by blocking histamine H2 receptors in the stomach lining.

Rantac Tablet dosage

Take this medicine as directed by the doctor. Do not take in larger or smaller amounts than advised/prescribed. It is to be taken before food, or as instructed by your doctor. Swallow the tablet whole with a glass of water. It can be taken with or without food. Do not exceed the recommended dose.

Continue treatment for the full prescribed duration, and ensure that the treatment course is completed. Do not stop the use of this medicine without consulting your doctor.

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose. Do not double the dose to make up for the missed one.

Age groupDose
ChildrenDose based on body weight and medical condition (only as prescribed)
Adults (18–64 Years)150 mg once or twice daily depending on condition
Older Adults (65+ Years)150 mg once or twice daily; dose adjustment may be needed with kidney problems

Available forms and strengths

  • Tablet
  • Injection
  • Syrup

Side effects of Rantac Tablet

Common

  • Fatigue
  • Drowsiness
  • Headache
  • Diarrhoea
  • Cough
  • Weakness
  • Constipation
  • Dizziness
  • Nausea or vomiting
  • Stomach pain
  • Mental confusion
  • Muscle pain

Serious

  • Pancreatic inflammation
  • Anaphylactic reaction
  • Bradycardia
  • Jaundice
  • Hepatitis
  • Depression
  • Difficulty in breathing
  • Gynecomastia (Growth of breast in males)
  • Irregular heartbeat
  • Liver problems
  • Allergic reactions

Warnings and precautions

  • This medicine is not recommended for use in pregnant women unless absolutely necessary. Discuss the risks and benefits with your doctor before taking it.
  • This medicine is not recommended for use in breastfeeding women unless absolutely necessary. Discuss the risks and benefits with your doctor before taking it.
  • This medicine should be used with caution in people with kidney problems, since it increases the risk of side effects. Kidney function may need to be monitored, and dose changes may be needed.
  • This medicine should be used with caution in people with liver problems, since it increases the risk of side effects. Liver function may need to be monitored, and dose changes may be needed.
  • It is unclear how this medicine interacts with alcohol. Talk to your doctor before drinking alcohol while taking it, and avoid alcohol since it may worsen stomach irritation.
  • This medicine does not cause drowsiness, so it is generally safe to drive or use machinery, but avoid driving if you feel dizzy or tired.
  • Using this medicine may increase the risk of developing pneumonia. Report symptoms like chest pain, fever, trouble breathing, or coughing up green or yellow mucus to your doctor right away.
  • If you have heartburn that lasts more than 3 months, or it continues or gets worse, see your doctor right away since this could be a sign of a more serious condition.
  • Taking this medicine for a long time may reduce how much vitamin B12 your body absorbs.
  • Using nicotine is not recommended while taking this medicine because it raises the risk of serious side effects.
  • This medicine is not recommended for people with severe gastrointestinal bleeding, as it may make the condition worse.
  • Do not take this medicine if you have kidney disease, liver disease, porphyria, heart disease, or known drug allergies, unless your doctor tells you to.

Storage

  • Store in a cool, dry place away from sunlight.
  • Keep out of reach of children and pets.
  • Do not use the medicine after the expiry date.

When to see a doctor

  • Get emergency medical help right away if you take too much of this medicine.
  • Seek immediate medical help if you notice signs of an allergic reaction, irregular heartbeat, or liver problems.
  • An overdose can cause dizziness, a fast or irregular heartbeat, confusion, or fainting, and needs immediate medical attention.

Alternatives

  • Famotidine
  • Omeprazole
  • Lansoprazole

Watch the video

Video: Rantac Tablet: Uses, Dosage, Side Effects, Precautions and Alternates

FAQs

What is Rantac Tablet used for?

Rantac Tablet is used for acidity, peptic ulcer, heartburn, GERD, Zollinger Ellison syndrome, stomach gas, hernia, stomach pain, bad breath, laryngitis, gastric and duodenal ulcers, erosive esophagitis, hypersecretory conditions, and dyspepsia.

How does Rantac Tablet work?

It works by reducing the amount of acid produced in the stomach by blocking histamine H2 receptors in the stomach lining.

What is the dosage of Rantac Tablet for adults?

Adults aged 18-64 years are generally given 150 mg once or twice daily depending on the condition, as directed by the doctor.

What are the common side effects of Rantac Tablet?

Common side effects include fatigue, drowsiness, headache, diarrhoea, cough, weakness, constipation, dizziness, nausea or vomiting, stomach pain, mental confusion, and muscle pain.

What precautions should be taken while using Rantac Tablet?

It should be used cautiously in people with kidney or liver problems, is not recommended during pregnancy or breastfeeding unless necessary, and should be avoided with alcohol or nicotine use.

General information, not medical advice

Your prescriber and the leaflet in your pack know your situation. This page does not.

  • Follow your prescriber and the leaflet
  • Don't start, stop, or change a dose on your own
  • Doses and warnings differ by country and product
Facts checked by a personSourcesFull disclaimer

Sources

  1. US Food and Drug Administration (FDA) [Internet]. Maryland. USA; Package leaflet information for the user; Zantac® (ranitidine hydrochloride)
  2. KD Tripathi. Seventh Edition. New Delhi, India: Jaypee Brothers Medical Publishers; 2013: Page No 650
  3. DailyMed - Ranitidine 150- ranitidine hydrochloride tablets 150mg tablet, coated
  4. Medicines.org.uk emc leaflet
  5. Ranitidine: MedlinePlus Drug Information
  6. Ranitidine - DrugBank
  7. HPRA package leaflet
  8. MRI CTS-MRP package leaflet
  9. Open Journal of Gastroenterology, 2023, 13, 237-249 - PROGRADE study