Definitions of ranitidine
  1. noun
    a histamine blocker and antacid (trade name Zantac) used to treat peptic ulcers and gastritis and esophageal reflux
    synonyms: Zantac
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    type of:
    histamine blocker
    a medicine used to treat the gastric effects of histamine in cases of peptic ulcers and gastritis and gastroesophageal reflux; works by blocking the effects of histamine on the receptor site known as H2
    alkaliser, alkalizer, antacid, antiacid, gastric antacid
    an agent that counteracts or neutralizes acidity (especially in the stomach)
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