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(an'tē-ven'in), Avoid the misspelling/mispronunciation antivenom.
An antitoxin specific for an animal or insect venom.
Synonym(s): antivenene
[anti- + L. venenum, poison]


, antivenene, antivenom (ant″i-ven′ĭn) (ant″ve″nēn′) (ant″ven′ŏm) [ anti- + venin, venom]
A serum that contains antitoxin specific for an animal or insect venom. Antivenin is prepared from the sera of immunized animals.

Patient care

Antivenins are foreign proteins that often induce allergic reactions in patients who receive them. The likelihood of allergic reactions is reduced by prior administration of epinephrine.

black widow spider antivenin

Antitoxic serum obtained from horses immunized against the venom of the black widow spider (Latrodectus mactans) and used specifically to treat bites of the black widow spider. The serum is available from Merck Co., Inc., West Point, PA 19486.

(Crotalidae) polyvalent antivenin

Anti-snakebite serum obtained from serum of horses immunized against venom of four types of pit vipers of the family Crotalidae: Crotalus atrox, C. adamanteus, C. terrificus, and Bothrops atrox .


An ANTISERUM containing specific antibodies to the venom of poisonous snakes, scorpions or spiders.

antivenin, antivenene

a material used to neutralize the venom of a poisonous animal. Prepared by immunization of serum-producing animals, usually horses. Antivenins against the venoms of most poisonous snakes, spiders and stinging fish and other aquatic species are available, but only in those areas in which the poisonous species occurs.
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References in periodicals archive ?
While there have been no recorded fatalities from sea snake bites in Australian waters, the availability of a specific antivenene has almost certainly saved a number of lives, highlighted in 1979 when a two-year-old child was bitten by a sea snake at Yeppoon in central Queensland.
Yet strangely enough, while 45 Australians died from snakebite between 1951 and 1961, an equal number died between 1960 and 1969 despite the availability of specific antivenenes and, from 1962, a polyvalent antivenene.
As Sutherland explained, there have been instances where antivenene has been withheld despite clear evidence of envenomation, while in other cases the incorrect antivenene bas been administered--sometimes repeatedly--following mistaken identification of the offending reptile.
Federal police called for a coronial inquiry into Edmonds' death, while Cooma Hospital's critical care committee conducted a review of the institution's antivenene holding policy.