histamine blocker

noun

Pharmacology.

1. any of various substances that act at a specific receptor site to block certain actions of histamine.

Example Sentences

Ranitidine is a histamine blocker that works to lower the acid created in the stomach, according to the F.D.A.

Read more on New York Times

That said, Dr. Gluckman says, a chemical histamine blocker such as Benadryl or Zantac works best.

Read more on The Wall Street Journal