Definition of Antihistamines

1. antihistamine [n] - See also: antihistamine

Medical Definition of Antihistamines

1. Drugs that combat the histamine released during an allergic reaction by blocking the action of the histamine on the tissue. Antihistamines do not stop the formation of histamine nor do they stop the conflict between the IgE and antigen. Therefore, antihistamines do not stop the allergic reaction but protect tissues from some of its effects. Antihistamines frequently cause mouth dryness and sleepiness. Newer non sedating antihistamines are generally thought to be somewhat less effective. Antihistamine side effects that very occasionally occur include urine retention in males and fast heart rate. (12 Dec 1998)

Lexicographical Neighbors of Antihistamines

antihemorrhagic
antihemorrhagic factor
antihemorrhagic factor
antihemorrhagic vitamin
antihero
antiheroes
antiheroic
antiheroine
antiheroines
antiherpes
antihidrotic
antihijack
antihistamine
antihistamine
antihistamines (current term)
antihistamines (current term)
antihistaminic
antihistaminic
antihistaminics
antihistorical
antihomosexual
antihormones
antihuman
antihumanism
antihumanisms
antihumanistic
antihuman globulin
antihunter
antihunting
antihydriotic

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