Brand Names: Acid Control 75, Acid Reducer, Taladine, Wal-Zan, Zantac, Zantac 150, Zantac 300, Zantac 300 GELdose, Zantac 75, Zantac GELdose
Generic Name: ranitidine
- What is ranitidine?
- What are the possible side effects of ranitidine?
- What is the most important information I should know about ranitidine?
- What should I discuss with my healthcare provider before using ranitidine?
- How should I take ranitidine?
- What happens if I miss a dose?
- What happens if I overdose?
- What should I avoid while taking ranitidine?
- What other drugs will affect ranitidine?
- Where can I get more information?
What is ranitidine?
Ranitidine is a histamine-2 blocker that reduces acid in the stomach.
Ranitidine has been used to treat conditions in which the stomach produces too much acid or conditions in which acid backs up from the stomach into the esophagus, such as gastroesophageal reflux disease (GERD).
Ranitidine has also been used to treat and prevent ulcers in the stomach and intestines.
A cancer-causing impurity found in many ranitidine medications may increase to unacceptable levels over time and when ranitidine is stored at high temperatures. As a result, the FDA has asked all makers of ranitidine to withdraw this medicine from the market in the United States.
Ranitidine may also have been used for purposes not listed in this medication guide.
What are the possible side effects of ranitidine?
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using ranitidine and call your doctor at once if you have:
- stomach pain, loss of appetite;
- dark urine, jaundice (yellowing of the skin or eyes);
- fever, chills, cough with mucus, chest pain, feeling short of breath;
- fast or slow heart rate;
- easy bruising or bleeding; or
- problems with your skin or hair.
Common side effects may include:
- nausea, vomiting, stomach pain; or
- diarrhea, constipation.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is the most important information I should know about ranitidine?
Ranitidine has been withdrawn from the market in the United States. Some of the contents of this leaflet are preserved for historical purposes only.
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What should I discuss with my healthcare provider before using ranitidine?
If you have been taking prescription-strength ranitidine: Before you stop taking the medicine, ask your doctor about safer treatment options.
If you have been taking over-the-counter (OTC) ranitidine: Stop taking the medicine, and ask your doctor or pharmacist about other approved OTC stomach acid reducers.
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.
How should I take ranitidine?
Because ranitidine has been withdrawn from the market in the U.S., some of the contents of this leaflet are intended for historical purposes only.
Use stomach acid medicine exactly as directed on the label, or as prescribed by your doctor.
Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).
It may take up to 8 weeks before your ulcer heals. Keep using your medications as directed and call your doctor if your symptoms do not improve after 6 weeks.
Your doctor may recommend an antacid to help relieve pain. Carefully follow your doctor's directions about the type of antacid to use, and when to use it.
Store at room temperature away from moisture, heat, and light.
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include lack of coordination, feeling light-headed, or fainting.
What should I avoid while taking ranitidine?
You should not stop taking prescription-strength ranitidine until you ask your doctor to prescribe a different medication. Talk with doctor as soon as possible about how best to treat your condition.
Avoid drinking alcohol. It can increase the risk of damage to your stomach.
What other drugs will affect ranitidine?
Many drugs can affect ranitidine. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here. Tell your doctor about all your current medicines and any medicine you start or stop using.
Where can I get more information?
Your pharmacist can provide more information about ranitidine.
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