What is it? Overview Usage Side Effects and Warnings

Ranitidine Overview

Written by FoundHealth.

(ra NI ti deen)

U.S. Brand Names

Zantac 150® [OTC]; Zantac 75® [OTC]; Zantac®; Zantac® EFFERdose®

Canadian Brand Names

Acid Reducer; Acid Reducer Maximum Strength Non Prescription; Apo-Ranitidine®; CO Ranitidine; Dom-Ranitidine; Med-Ranitidine; Mylan-Ranitidine; Novo-Ranidine; Nu-Ranit; PHL-Ranitidine; PMS-Ranitidine; Ranitidine Injection, USP; ratio-Ranitidine; Riva-Ranitidine; Sandoz-Ranitidine; ScheinPharm Ranitidine; Zantac 75®; Zantac Maximum Strength Non-Prescription; Zantac®; ZYM-Ranitidine

Mexican Brand Names

Acloral; Azantac; Galidrin; Iqfadina; Ranisen

Pharmacologic Category

Histamine H2 Antagonist

What key warnings should I know about before taking this medicine?

• This medicine does not mix well with some medicines. Serious reactions may occur. Check all medicines with healthcare provider.

Reasons not to take this medicine

• If you have an allergy to ranitidine hydrochloride or any other part of this medicine.

• Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.

• If you have porphyria.

How does it work?

• Ranitidine prevents symptoms and damage to the gastrointestinal tract caused by stomach acid or infection.

How is it best taken?

• Take this medicine with or without food. Take with food if it causes an upset stomach.

• Take this medicine at bedtime if you are taking once a day.

• Drop effervescent tablet in 1 teaspoonful of water. Drink when dissolved.

• A liquid (syrup) is available if you cannot swallow pills.

• Those who have feeding tubes can also use the liquid. Flush the feeding tube before and after medicine is given.


• This medicine is given as a shot into a muscle or vein.

What do I do if I miss a dose? (does not apply to patients in the hospital)

• Take a missed dose as soon as possible.

• If it is almost time for the next dose, skip the missed dose and return to your regular schedule.

• Do not take a double dose or extra doses.

• The over-the-counter tablet can be taken on an as needed basis. Do not take more often than every 12 hours, unless instructed by healthcare provider.

What should I monitor?

• Change in condition being treated. Is it better, worse, or about the same?

How should I store this medicine?

• Store at room temperature.

• Protect from light.

• Protect tablets from moisture. Do not store in a bathroom or kitchen.

• The injection will be given to you in a healthcare setting. You will not store it at home.

General statements

• If you have a life-threatening allergy, wear allergy identification at all times.

• Do not share your medicine with others and do not take anyone else's medicine.

• Keep all medicine out of the reach of children and pets.

• Most medicines can be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.

• Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).

• Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or in Canada to Health Canada's Canada Vigilance Program at 1-866-234-2345.

• Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.

Created: 2006-10-13 15:30:16.0

Modified: 2010-05-10 12:15:27.0

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