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 works by reducing the amount of acid your stomach produces.
Ranitidine is used to treat and prevent ulcers in the stomach and intestines. It also treats conditions in which the stomach produces too much acid, such as Zollinger-Ellison syndrome. Ranitidine also treats gastroesophageal reflux disease (GERD) and other conditions in which acid backs up from the stomach into the esophagus, causing heartburn.
Ranitidine may also be 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?
Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.
What should I discuss with my healthcare provider before using ranitidine?
You should not use ranitidine if you are allergic to it.
Ask a doctor or pharmacist if this medicine is safe to use if you have:
- kidney disease;
- liver disease; or
- porphyria (a genetic enzyme disorder that causes symptoms affecting the skin or nervous system).
Ask a doctor before using this medicine if you are pregnant or breast-feeding.
How should I take ranitidine?
Use exactly as directed on the label, or as prescribed by your doctor.
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.
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 the medication as directed and call your doctor if your symptoms do not improve after 6 weeks.
This medicine can affect the results of certain medical tests. Tell any doctor who treats you that you are using ranitidine.
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?
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.
Copyright 1996-2019 Cerner Multum, Inc.