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Generic name: ranitidine [ra-NI-ti-deen]
Drug class: H2 antagonists

What is Zantac?

Zantac is part of a family of drugs known as histamine-2 blockers. It reduces the levels of acid that your stomach produces.Zantac is employed to stop ulcers and heal them within the stomach and intestines. It is also used to treat ailments that cause the stomach to produce excessive amounts of acid, like the Zollinger-Ellison disorder.

Zantac is also utilized in the treatment of gastroesophageal resuscitation disease (GERD) and other ailments in which acid flows through the stomach into the esophagus, which causes heartburn.A cancer-causing impurity in a variety of ranitidine medicines could grow to levels that are unacceptable as time passes and when stored at high temperatures. In the end, the FDA has urged all producers of ranitidine to stop selling the medication across the United States.


Zantac has been removed from the market in the United States. The contents of this leaflet have been preserved for historical reasons only.The use of Zantac can increase your chances of developing pneumonia. Signs of pneumonia include chest discomfort and fever, shortness of breath, and a cough with mucus that is yellow or green. Consult your doctor about the specific risk of contracting pneumonia.Don't use Zantac if you are allergic to ranitidine.

Consult a physician or pharmacist to determine whether it is safe to take this medication if you suffer from liver disease, kidney disease, or porphyria.

Heartburn can be confused with the initial signs of a heart attack. Get medical attention immediately in the event of chest pain or a feeling of heavy pain that extends to the shoulder or arm, nausea, sweating, or general discomfort.

Before you take this drug

If you've taken over-the-counter (OTC) Zantac: Stop using the medicine and consult your physician or pharmacist for other approved OTC stomach acid-reducing medications.

Heartburn could be the first sign of a heart attack. Seek medical attention immediately if you are experiencing chest pain that is spreading into your shoulder or jaw and if you are feeling anxious or lightheaded.

Before taking any OTC medicine to decrease stomach acid, talk to an expert or pharmacist to determine if the medication is suitable for you in the event that you have any other medical issues or allergies.Talk to your doctor prior to using the OTC stomach acid medication if you are breastfeeding or pregnant.

How to take Zantac?

Since Zantac has been removed from the marketplace within the U.S., some of the information contained in this leaflet is to be used for historical reasons only.You should take Zantac exactly as indicated on the label or as directed by your doctor.

Make sure to measure the liquid medicine with care. Use the dosing syringe supplied or a dosage measuring device (not the kitchen spoon).It can take up to 8 weeks for your ulcer to heal. Use your medications as prescribed, and consult your doctor if you notice that your symptoms don't improve after six weeks.

The doctor might recommend an antacid to ease the discomfort. Follow your doctor's instructions on the type of antacid you should use and the appropriate time to use it.Keep at room temperature, away from heat, humidity, and light.

What happens If I miss a dose?

You should take the medication as quickly as you are able, but avoid your missed dose if it's close to the time of the next dose. Don't take two doses at a time.

What happens if I overdose?

For medical emergencies, seek emergency medical attention or contact the Poison Help line toll-free at 1-800-222-1222.

The symptoms of an overdose can include a lack of coordination. It could also cause you to feel lightheaded or faint.

What should be avoided?

You should not stop taking prescription-strength Zantac until you ask your doctor to prescribe a different medication. Talk with your doctor as soon as possible about how best to treat your condition.

Beware of drinking alcohol. It could increase the chance of damage to your stomach.

Side effects of Zantac

Contact a medical professional immediately. If you are experiencing symptoms of an allergy reaction to Zantac, such as hives, breathing difficulties, or swelling of your lips, face, and tongue,

Stop taking Zantac and contact your doctor immediately if you experience:

  • Stomach discomfort, nausea;
  • Dark urine; jaundice (yellowing of the eyes or skin);
  • The symptoms include chills, fever, coughing with chest pain, mucus, and feeling tired.
  • Rapid, a heart rate that is slow,
  • Bleeding, or easy bruising
  • Issues with your skin or hair.

Common zantac side effects can include:

  • Nausea, vomiting, stomach pain,
  • Diarrhea, constipation.

This is not a comprehensive list of possible side effects, and other side effects could be present. Contact your doctor to seek medical advice on adverse effects. You can report any side effects to the FDA at 1-800-FDA-1088.

Interaction with other drugs

A variety of drugs may interact with ranitidine. It includes over-the-counter and prescription medicines, vitamins as well as herbal supplements. The interactions of all drugs are not included in this list. Discuss with your physician all the medications you are currently taking and any medications you begin or stop taking.



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