For H2-blockers we have a term and definition in Health.

H2-blockers (Health)

Medications used to treat gastroesophageal reflux disease (GERD) that decrease the amount of acid made by the stomach. The stomach lining has sites that react to a chemical normally found in the body called histamine. When histamine attaches to these sites, the stomach produces acid that aids in digestion of food. H2-blockers prevent the stomach from reacting to histamine, thereby decreasing stomach acid.

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