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Drugs & Medications

ranitidine

RANITIDINE CAPSULE

COMMON BRAND NAME(S): Zantac

GENERIC NAME(S): RANITIDINE HCL

Uses

Ranitidine is used to treat ulcers of the stomach and intestines and prevent them from coming back after they have healed. This medication is also used to treat certain stomach and throat (esophagus) problems (such as erosive esophagitis, gastroesophageal reflux disease-GERD, Zollinger-Ellison syndrome). It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as cough that doesn't go away, stomach pain, heartburn, and difficulty swallowing. Ranitidine belongs to a class of drugs known as H2 blockers.

How to use ranitidine

Take this medication by mouth with or without food as directed by your doctor, usually once or twice daily. It may be prescribed 4 times a day for some conditions. If you are taking this medication once daily, it is usually taken after the evening meal or before bedtime.

The dosage and length of treatment are based on your medical condition and response to therapy. In children, dosage may also be based on body weight. Follow your doctor's instructions carefully. You may take other medications (e.g., antacids) for your condition as recommended by your doctor.

Take this medication regularly in order to get the most benefit from it. To help you remember, take it at the same time(s) each day. Do not increase your dose or take it more often than prescribed. Do not stop taking this without your doctor's approval because this may delay healing of the ulcer.

Tell your doctor if your condition does not improve or if it worsens.

Side Effects

Headache, constipation or diarrhea may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor right away if you have any serious side effects, including: blurred vision, mental/mood changes (e.g., agitation, confusion, depression, hallucinations), easy bleeding/bruising, enlarged breasts, severe tiredness, fast/slow/irregular heartbeat, signs of infection (such as sore throat that doesn't go away, fever, chills), severe stomach/abdominal pain, dark urine, yellowing skin/eyes.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Precautions

Before taking ranitidine, tell your doctor or pharmacist if you are allergic to it; or to other H2 blockers (e.g., cimetidine, famotidine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: a certain blood disorder (porphyria), immune system problems, kidney problems, liver problems, lung diseases (e.g., asthma, chronic obstructive pulmonary disease-COPD), other stomach problems (e.g., tumors).

Some symptoms may actually be signs of a more serious condition. Get medical help right away if you have: heartburn with lightheadedness/sweating/dizziness, chest/jaw/arm/shoulder pain (especially with shortness of breath, unusual sweating), unexplained weight loss.

Older adults may be more sensitive to the side effects of this drug, especially confusion.

Ranitidine should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.

Ranitidine passes into breast milk. Consult your doctor before breast-feeding.

Interactions

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Some products need stomach acid so that the body can absorb them properly. Ranitidine decreases stomach acid, so it may change how well these products work. Some affected products include atazanavir, dasatinib, delavirdine, certain azole antifungals (such as itraconazole, ketoconazole), pazopanib, among others.

Do not use this medication with other products that contain ranitidine or other H2 blockers (cimetidine, famotidine, nizatidine).

This medication may interfere with certain laboratory tests (including certain urine protein tests), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.

Overdose

If overdose is suspected, contact a poison control center or emergency room right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include difficulty walking, severe dizziness/fainting.

Notes

Do not share this medication with others.

Lifestyle changes such as stress reduction programs, stopping smoking, limiting alcohol, and diet changes (such as avoiding caffeine and certain spices) may help this medication work better. Talk to your doctor or pharmacist about lifestyle changes that might benefit you.

Laboratory and/or medical tests (e.g., endoscopy, kidney function tests) may be performed to monitor your progress or check for side effects. Consult your doctor for more details.

Missed Dose

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

Storage

Store in a tightly closed container at room temperature between 59-86 degrees F (15-30 degrees C) away from moisture and light. Do not store in the bathroom. Keep all medicines away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

Information last revised May 2015. Copyright(c) 2015 First Databank, Inc.

Images

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ZANTAC 300 MG TABLET
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ACID REDUCER 75 MG TABLET
ACID REDUCER 75 MG TABLET

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color
pink
shape
hexagonal
imprint
W, 75
This medicine is a pink, hexagonal tablet imprinted with "W" and "75".
RA ACID REDUCER 75 MG TABLET

Identification

color
white
shape
round
imprint
No data.
This medicine is a white, round tablet.
SB ACID REDUCER 75 MG TABLET
SB ACID REDUCER 75 MG TABLET

Identification

color
pink
shape
round
imprint
OR, 606
This medicine is a pink, round tablet imprinted with "OR" and "606".
PV ACID REDUCER 75 MG TABLET
PV ACID REDUCER 75 MG TABLET

Identification

color
No data.
shape
No data.
imprint
No data.
RANITIDINE 75 MG TABLET
RANITIDINE 75 MG TABLET

Identification

color
pink
shape
hexagonal
imprint
W, 75
This medicine is a pink, hexagonal tablet imprinted with "W" and "75".
CVS RANITIDINE 75 MG TABLET
CVS RANITIDINE 75 MG TABLET

Identification

color
peach
shape
round
imprint
OR 606
This medicine is a peach, round tablet imprinted with "OR 606".
ZANTAC 150 MG TABLET
ZANTAC 150 MG TABLET

Identification

color
peach
shape
five-sided
imprint
ZANTAC 150, Glaxo
This medicine is a peach, five-sided, film-coated tablet imprinted with "ZANTAC 150" and "Glaxo".
RANITIDINE 150 MG TABLET
RANITIDINE 150 MG TABLET

Identification

color
beige
shape
round
imprint
logo and 4357, 150
This medicine is a beige, round, film-coated tablet imprinted with "logo and 4357" and "150".
ZANTAC 300 MG TABLET
ZANTAC 300 MG TABLET

Identification

color
yellow
shape
oblong
imprint
ZANTAC 300, Glaxo
This medicine is a yellow, oblong, film-coated tablet imprinted with "ZANTAC 300" and "Glaxo".
RANITIDINE 300 MG TABLET
RANITIDINE 300 MG TABLET

Identification

color
beige
shape
oval
imprint
logo and 4358, 300
This medicine is a beige, oval tablet imprinted with "logo and 4358" and "300".

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Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, expect as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.

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