Zantac and Weight Loss

Zantac is an over-the-counter acid reducer. Certain conditions, such as peptic ulcers and gastroesophageal reflux disease or GERD, can cause stomach acid to flow backward into your esophagus. The results are very unpleasant, often leaving you with heartburn, nausea and sometimes a burning sensation in your throat. You can also experience coughing and vomiting. Zantac helps reduce stomach acid to prevent or reduce these symptoms.

Senior man holding his chest talking to his doctor. Credit: Jovanmandic/iStock/Getty Images


Zantac is also used to help treat and prevent intestinal and stomach ulcers, in addition to being an acid reducer for other conditions. It's very important that you do not take more or less than recommended and that you do not exceed the amount of time that should take this medication. Follow all physician instructions or take as directed by the product label. Zantac does not cause weight loss, not is it associated with losing weight.

Side Effects

Common side effects associated with the use of Zantac include nausea, vomiting, difficulty sleeping, dizziness, decreased sex drive and stomach pain. Severe or serious side effects include vision problems, yellowing of the skin or eyes, irregular heart rate, shortness of breath, chest pain and blistering or peeling skin accompanied by a rash. If you begin to experience serious side effects, seek immediate medical attention.

Weight Loss

While Zantac has no relation to weight loss, certain conditions that would warrant this type of medication could cause weight loss. In this type of instance, it's the condition that's causing the weight loss, not the medication. If you suffer from acid reflux or peptic ulcers, it may be painful or difficult for you to eat. Certain foods, such as tomato-based sauces, spicy nachos or hot wings, may be unpleasant as they can increase stomach acid. When stomach acid is increased, the acids can easily backflow into your esophagus and cause vomiting, burning of the throat, coughing and pain. This may cause unintentional weight loss, especially if you experience these symptoms after almost every meal. You may eat less food than you normally did or smaller quantities.


If you have heartburn more than three times per week, experience severe stomach acid that you can taste or causes a burning sensation in your throat; contact your doctor right away. Peptic ulcers can burst and cause bleeding in your stomach or intestinal lining, which can lead to infection and other medical problems. Long-term GERD or acid reflux can cause permanent, irreversible damage to your esophagus.

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