Zantac has been withdrawn from the market in the United States. Some of the contents of this leaflet are preserved for historical purposes only.
Using Zantac may increase your risk of developing pneumonia. Symptoms of pneumonia include chest pain, fever, feeling short of breath, and coughing up green or yellow mucus. Talk with your doctor about your specific risk of developing pneumonia.
Do not use Zantac if you are allergic to ranitidine.
Ask a doctor or pharmacist if it is safe for you to take this medicine if you have kidney disease, liver disease, or porphyria.
Heartburn is often confused with the first symptoms of a heart attack. Seek emergency medical attention if you have chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, and a general ill feeling.
Before taking this medicine
If you have been taking prescription-strength Zantac: Before you stop taking the medicine, ask your doctor about safer treatment options.
If you have been taking over-the-counter (OTC) Zantac: Stop taking the medicine, and ask your doctor or pharmacist about other approved OTC stomach acid reducers.
Heartburn can mimic early symptoms of a heart attack. Get emergency medical help if you have chest pain that spreads to your jaw or shoulder and you feel anxious or light-headed.
Before using any OTC medicine to reduce stomach acid, ask a doctor or pharmacist if the medicine is safe for you if you have other medical conditions or allergies.
Ask a doctor before using any OTC stomach acid medicine if you are pregnant or breastfeeding.
