Generic Name: Ranitidine Injection (ra NI ti deen)
Brand Name: Zantac
Medically reviewed on July 4, 2018
Uses of Zantac:
- It is used to treat gastroesophageal reflux disease (GERD; acid reflux).
- It is used to treat or prevent GI (gastrointestinal) ulcers.
- It is used to treat heartburn and sour stomach.
- It is used to treat syndromes caused by lots of stomach acid.
- It may be given to you for other reasons. Talk with the doctor.
What do I need to tell my doctor BEFORE I take Zantac?
- If you have an allergy to ranitidine hydrochloride or any other part of Zantac (ranitidine injection).
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have ever had porphyria.
This is not a list of all drugs or health problems that interact with Zantac (ranitidine injection).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Zantac (ranitidine injection) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Zantac?
- Tell all of your health care providers that you take Zantac (ranitidine injection). This includes your doctors, nurses, pharmacists, and dentists.
- Avoid driving and doing other tasks or actions that call for you to be alert until you see how Zantac (ranitidine injection) affects you.
- This medicine may affect certain lab tests. Tell all of your health care providers and lab workers that you take Zantac (ranitidine injection).
- Tell your doctor if you have black, tarry, or bloody stools; you throw up blood; or your throw up looks like coffee grounds.
- If you are taking warfarin, talk with your doctor. You may need to have your blood work checked more closely while you are taking it with Zantac (ranitidine injection).
- If you are 65 or older, use Zantac (ranitidine injection) with care. You could have more side effects.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using Zantac (ranitidine injection) while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
How is this medicine (Zantac) best taken?
Use Zantac (ranitidine injection) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- It is given as a shot into a muscle or vein.
What do I do if I miss a dose?
- Call your doctor to find out what to do.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Very bad dizziness or passing out.
- Feeling confused.
- Chest pain or pressure or a fast heartbeat.
- A heartbeat that does not feel normal.
- Very bad headache.
- Not able to pass urine.
- Any unexplained bruising or bleeding.
What are some other side effects of Zantac?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Upset stomach or throwing up.
- Hard stools (constipation).
- Loose stools (diarrhea).
- Redness or swelling where the shot is given.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Zantac?
- If you need to store Zantac (ranitidine injection) at home, talk with your doctor, nurse, or pharmacist about how to store it.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Zantac (ranitidine injection), please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Zantac (ranitidine)
- Zantac Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Patient Tips
- Drug Images
- Drug Interactions
- Compare Alternatives
- Support Group
- Pricing & Coupons
- En Español
- 23 Reviews
- Generic Availability
- Drug class: H2 antagonists