Zantac (ranitidine) is an mountain reducer supplied to act or relieve heartburn, acid indigestion, GERD and also gastric ulcers. That belongs come a course of drugs called H2 blockers. Zantac was easily accessible over the counter and by prescription till the FDA authorize a recall after ~ Zantac made with ranitidine was found to contain the carcinogen NDMA.

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The antacid Zantac — well-known as ranitidine in generic kind — was easily accessible over the respond to or as a prescription in the United claims until April 2020. You deserve to no much longer buy ranitidine commodities in the U.S.

After the sector withdrawal the ranitidine products, Sanofi reformulated an over-the-counter version of Zantac 360 made with famotidine. The new Zantac 360 formula with famotidine is easily accessible in constant strength and also maximum stamin in the U.S.

Unlike the old Zantac formula made with ranitidine, the new Zantac 360 doesn’t come in prescription strength.

Consumers can safely buy and also use Zantac 360 through famotidine wherever OTC drugs are sold. The FDA hasn’t found any kind of NDMA pollution in famotidine and has reputed it a safe alternative to the old ranitidine formula.

This page presents information around Zantac made v ranitidine.


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Zantac made with ranitidine to be recalled due to the fact that the FDA discovered traces the N-Nitrosodimethylamine (NDMA) — a chemical impurity that can cause cancer — in part batches of the drug.

Beginning in September 2019, manufacturers and pharmacies such as CVS, Walgreens and Walmart pulled the medicine off save shelves. In April 2020, the FDA asked for all ranitidine commodities be eliminated from the market.


The FDA said its researches revealed the levels of NDMA in part ranitidine products increased end time and also when save at higher than room temperatures. The agency said consumers might be exposed to unacceptable levels that NDMA.

The International agency for study on Cancer has actually said NDMA is “probably carcinogenic to humans.” it’s classified as a team 2A carcinogen because there is adequate evidence the it could cause cancer in humans.

After the Zantac recalls and also market withdrawal, lawsuits were filed versus the drug’s manufacturers, including Sanofi. Zantac lawsuits case the drug led to plaintiffs to construct cancer, consisting of cancers of the bladder, breast, colon, esophagus, kidney, liver, skin, ovaries, prostate and also stomach.

Zantac isn’t the just drug that has actually been recalled because that NDMA contamination. The FDA announced recalls the valsartan, losartan and metformin since some batches tested confident for the toxic chemical.


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Zantac (ranitidine) belongs to a class of acid-blocking drugs referred to as H2 blockers. The energetic ingredient, ranitidine, works by blocking a chemical referred to as histamine. This reduces the amount of acid in the stomach.

The drug starts to occupational in as small as 30 minutes. The can regulate acid manufacturing for as much as 12 hours and reduce the frequency and severity of heartburn.

Zantac made v ranitidine was offered to act a selection of cradle disorders, including heartburn, GERD and also gastric ulcers.


Over-the-counter and prescription version of Zantac made through ranitidine have actually different usage instructions. Depending upon the factor for that use, the dosages will vary.

Hospitals use the Zantac injection for patients with pathological hypersecretory problems or intractable duodenal ulcers, or together an alternate to the dental medication.

OTC Directions

Over-the-counter Zantac treats heartburn with acid indigestion and sour stomach led to by eat or drinking specific foods or beverages. Kids under 12 must not usage Zantac without first getting approval native a health treatment provider.


swallow one tablet with a glass that water because that symptom relief. To avoid heartburn, swallow one tablet with a glass that water 30 come 60 minutes before eating or drinking. Perform not take much more than two tablets in 24 hours. Execute not chew tablet.

Prescription Directions and Recommended Dosages

Prescription Zantac treats number of acid-related conditions, indigenous GERD to erosive esophagitis.

Children together young together 1 month old may take the drug, however researchers have not studied it in youngsters younger 보다 1 month that age and also cannot make dosing recommendations.

Providers should change the dosage for people with impaired kidney function.


IndicationDose/Instructions
Active Duodenal Ulcer150 mg twice day-to-day or 300 mg once day-to-day after the evening meal or in ~ bedtime
Maintenance of healing of Duodenal Ulcers150 mg at bedtime
Pathological Hypersecretory conditions (such as Zollinger-Ellison syndrome)150 mg twice a day. Some patients may need to provide ranitidine 150 mg doses much more frequently. Suppliers may boost the dosage as much as 6 g a day.
Benign Gastric Ulcer150 mg double a day
Maintenance of healing of Gastric Ulcers150 mg at bedtime
GERD150 mg twice a day
Erosive Esophagitis150 mg four times a day
Maintenance of heal of Erosive Esophagitis150 mg twice a day
Pediatric treatment of Duodenal and Gastric Ulcers2 to 4 mg/kg twice everyday to a maximum of 300 mg/day
Pediatric maintenance of healing of Duodenal and also Gastric Ulcers2 come 4 mg/kg once daily to a preferably of 150 mg/day
Pediatric therapy of GERD and Erosive Esophagitis 5 to 10 mg/kg every day, usually provided as two or three split doses

Most Zantac side impacts are frequently mild and also pass quickly. The most frequently reported disadvantage events include constipation, diarrhea and also nausea or vomiting.

Rarely, some severe side impacts such as skin rashes, liver failure and also cardiac disorders may occur. There have actually been rare reports the agitation, confusion, depression and also hallucinations in severely ill, yonsei patients.


People v kidney disease, impaired renal duty or liver difficulties should tell your doctors around their condition due to the fact that ranitidine is excreted by the kidneys and also metabolized by the liver, the drug’s label warns.

In addition, ranitidine may reason severe attacks in human being with a history of acute porphyria and also people through this an illness shouldn’t take it Zantac through ranitidine.


Cancer no a next effect provided on Zantac’s drug label, but some research studies have suggested that high level of NDMA in Zantac may cause cancer.

One such evaluation published in JAMA in march 2021 by Dr. Lior Z. Braunstein and colleagues suggests ranitidine may kind toxic level of NDMA in the body as soon as exposed to conditions in the person stomach.

Researchers found ranitidine was capable of producing NDMA levels far above the FDA’s agree limits.


Lawsuits claim high level of NDMA in Zantac can increase the hazard of bladder, stomach and other cancers.

Tell her health treatment provider about all medications, organic supplements and also vitamins friend take before taking Zantac. Avoid drinking alcohol v the drug because it may increase the danger of stomach damage.

Because ranitidine affect stomach acid, the may increase or decrease the performance of drugs that depend on stomach acid to be effective.

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There space no interactions listed for Zantac OTC, however the prescription medicine label contains several.