Ranitidine (Zantac) is in a class of medications called H2-receptor blocker.

Take Ranitidine (Zantac) exactly as directed.

Ranitidine (Zantac) may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

constipation
diarrhea
headache
stomach pain
upset stomach
vomiting

No specific interactions with Ranitidine (Zantac) are known at this time.

Ask your health care provider if Ranitidine (Zantac) may interact with other medicines that you take.

In case of overdose, call your local poison control center at 1-800-222-1222.

If the victim has collapsed or is not breathing, call local emergency services at 911.

Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

if you are pregnant, planning to become pregnant, or are breast-feeding

if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement

if you have allergies to medicines, foods, or other substances

if you have a history of kidney or liver problems

if you have abnormal blood electrolyte levels or a history of irregular heartbeat

Do not take a double dose to make up for a missed one.

Treating certain conditions that cause your body to make too much stomach acid.

Ranitidine (Zantac) may be prescribed for other uses; ask your doctor or pharmacist for more information.

Store it at room temperature and away from excess heat and moisture.

Ranitidine (Zantac) may interfere with certain lab tests, including urine protein tests. Be sure your doctor and lab personnel know you are taking Ranitidine (Zantac).


If you have any questions about Ranitidine (Zantac), please talk with your doctor, pharmacist, or other health care provider.