English Lexicon

H2-Blocker

/ˈeɪtʃ tuː ˈblɒkər/
nounCEFR B2 (Upper)Top #15000 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A class of medications that inhibit the action of histamine at the H2 receptors of the stomach, thereby reducing gastric acid secretion.

    "Doctors often prescribe H2-blockers to patients suffering from gastroesophageal reflux disease."
  2. 2

    A specific type of drug used to treat conditions like ulcers and heartburn by decreasing stomach acid production.

    "Common H2-blockers include ranitidine and famotidine."

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Linguistic Origin & Historical Etymology

The term 'H2-blocker' originates from the medical field, specifically pharmacology, where 'H2' refers to histamine type 2 receptors. These receptors were identified in the mid-20th century, leading to the development of medications that block their action to reduce stomach acid production.

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