any of certain compounds or medicines that neutralize or inhibit the effect of in the body, used chiefly in the treatment of allergic disorders and colds.
Contemporary Examples

Elvis also had the painkillers morphine and Demerol; tranquilizers Placidyl and Valium; and Chlorpheniramine, an antihistamine.
Elvis’s Doctor Speaks Gerald Posner August 13, 2009

“He gave me a blue pill, which he said was an antihistamine,” said Chelan.
Two New Bill Cosby Accusers Come Forward: ‘We Challenge Mr. Cosby to End This Nightmare’ Marlow Stern December 2, 2014

And, Zyrtec, an antihistamine, was the highest grossing nonfood of 2008, coming in at $316 million in sales.
Blame Climate Change for Your Terrible Seasonal Allergies Kent Sepkowitz May 13, 2014

any drug that neutralizes the effects of histamine, used esp in the treatment of allergies

1933, from anti- + histamine.

antihistamine an·ti·his·ta·mine (ān’tē-hĭs’tə-mēn’, -mĭn)
Any of several drugs used to counteract the physiological effects of histamine.
an’ti·his’ta·mine’ adj.
Any of various drugs that relieve cold or allergy symptoms by blocking the action of histamine.

Read Also:

  • Antihistaminic

    of or relating to an or its effect. an antihistaminic agent, as a drug. antihistaminic an·ti·his·ta·min·ic (ān’tē-hĭs’tə-mĭn’ĭk) adj. Tending to neutralize or antagonize the action of histamine or inhibit its production in the body. n. An antihistaminic drug.

  • Historical

    of, pertaining to, treating, or characteristic of or past events: historical records; historical research. based on or reconstructed from an event, custom, style, etc., in the past: a historical reenactment of the battle of Gettysburg. having once existed or lived in the real world, as opposed to being part of legend or fiction or as […]

  • Homosexuality

    sexual desire or behavior directed toward a person or persons of one’s own sex. Contemporary Examples homosexuality must be curable, it argues, since the Torah would not forbid something which is impossible to avoid. Gay Orthodox Jews Sue Over Therapy That Claims to ‘Cure’ Them Zoë Blackler November 26, 2012 In October, it will host […]

  • Antihuman

    against or opposed to beings or values. Historical Examples So that the notion of the divine, of the superhuman tends toward that of the antinatural and antihuman. The Non-religion of the Future: A Sociological Study Jean-Marie Guyau

  • Humanism

    any system or mode of thought or action in which interests, values, and dignity predominate. devotion to or study of the . (sometimes initial capital letter) the studies, principles, or culture of the . Philosophy. a variety of ethical theory and practice that emphasizes reason, scientific inquiry, and fulfillment in the natural world and often […]

Disclaimer: Antihistamine definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.