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Zantac

Last reviewed on RxList: 11/14/2017
Zantac Side Effects Center

Pharmacy Editor: Omudhome Ogbru, PharmD

Last reviewed on RxList 11/14/2017

Zantac (ranitidine hydrochloride) is a H2 (histamine-2) receptor blocker used for treating and preventing ulcers in the duodenum and stomach. Zantac is also used for treating

Generic formulations of Zantac are available. Side effects of Zantac include:

Zantac is available in tablet, syrup, and injectable formulations. Zantac may interact with triazolam, procainamide, warfarin, riazolam, midazolam, glipizide, ketoconazole, atazanavir, delavirdine, and gefitinib. Tell your doctor all medications and supplements you use. Available evidence suggests that there is little risk when Zantac is used during pregnancy. Zantac passes into breast milk. Consult your doctor before breastfeeding.

Our Zantac Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

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.

Zantac Consumer Information

Stop using ranitidine and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop taking ranitidine and call your doctor at once if you have a serious side effect such as:

  • chest pain, fever, feeling short of breath, coughing up green or yellow mucus;
  • easy bruising or bleeding, unusual weakness;
  • fast or slow heart rate;
  • problems with your vision;
  • fever, sore throat, and headache with a severe blistering, peeling, and red skin rash; or
  • nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Less serious side effects may include:

  • headache (may be severe);
  • drowsiness, dizziness;
  • sleep problems (insomnia);
  • decreased sex drive, impotence, or difficulty having an orgasm; or
  • swollen or tender breasts (in men);
  • nausea, vomiting, stomach pain; or
  • diarrhea or 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.

Read the entire detailed patient monograph for Zantac (Ranitidine Hcl)

Zantac Professional Information

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