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 (ăn′tē-vĕn′ĭn, ăn′tī-)
1. An antitoxin active against the venom of a snake, spider, or other venomous animal or insect.
2. An animal serum containing antivenins. It is used in medicine to treat poisoning caused by animal or insect venom.


(ˌæntɪˈvɛnɪn) or


(Pharmacology) an antitoxin that counteracts a specific venom, esp snake venom
[C19: from anti- + ven(om) + -in]


(ˌæn tiˈvɛn ɪn, ˌæn taɪ-)

also an•ti•ven•om

(-ˈvɛn əm)

an antitoxin that counteracts venom, as from snakebite, obtained from the serum of a large animal that has had a series of controlled venom injections: used for treating victims of venomous bites.


1. an antidote for venom, as snake venom, formed by gradually increased injection of the venom into the bloodstream.
2. the serum containing this antidote.
See also: Remedies
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.antivenin - an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animalantivenin - an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animal
antitoxin - an antibody that can neutralize a specific toxin

antivenin, antivenom

n antiveneno
References in periodicals archive ?
8 LD[sub]50) via the caudal vein; the antivenom group was injected immediately with specific antivenom via the caudal vein after successful establishment of the envenomation model; and the antivenom + HBO group was exposed to HBO environment for 1 h once at predetermined periods of 0 h, 4 h, 12 h, and 23 h after antivenin administration.
A retrospective analysis showed that these bites were due to a snake called Malabar pit viper which is indigenous to this region and the antivenin doesn't have any activity against this type of snake bites.
A full-on bite treatment can get real pricey, seeing as how Cro-Fab antivenin costs several grand a vial and a serious bite can require a whole bunch of vials.
All snake bites should be treated with supportive care, and antivenin is indicated when symptoms or history indicate a bite from a venomous snake.
Bulletin of the Antivenin Institute of America 2:108.
Antivenin is expensive and its availability limited because the venom must be milked from live snakes.
For species which are potentially lethal, often antivenin will be available, and the use of antivenin comes with its own challenges.
You must comply with the requirements antivenin (crotalidae) polyvalente usp xxiv
In response to fatalities following stonefish envenomations, the Australians developed an equine fragment antigen-binding (Fab) antivenin which is also cross-neutralizing with lionfish and scorpionfish venoms, but is usually reserved for severe stonefish envenomations (stonefish ntivenin, Commonwealth Serum Laboratories Limited, Parkville, Victoria, Australia, 2,000 units per 2 ml ampoule).
The terms antivenom, antivenin, and antivenene all refer to a biological product used in the treatment of venomous bites or stings.
Access to an antivenin for systemic symptoms is arguably the most important for survival, and therefore immediate transfer to a hospital is critically important.