1) Antihistamine 
(from the article `Bovet, Daniel`) ...effect of histamine) is effective in treating allergic reactions. This discovery led to development of the first antihistamine drug for humans in ...
<chemical> A histamine h1 antagonist. It has mild hypnotic properties and some local anaesthetic action and is used for allergies (including skin eruptions) both parenterally and locally. It is a common ingredient of cold remedies. ... Pharmacological action: anti-allergic agents, histamine h1 antagonists. ... Chemical name: 1,2-Ethanediamine...
(pә-ril´ә-mēn) an antihistamine, administered orally as the maleate and tannate salts, usually in a combination cold or cough product together with a decongestant.
[n] - antihistamine used to treat rhinitis and pruritus
noun antihistamine used to treat rhinitis and pruritus