The current standard of care with regard to using antivenom for pit viper snakes (e.g., rattlesnakes, copperheads, cottonmouths) in North America is to use Crotalidae polyvalent immune Fab antivenom (CroFab;FabAV). This antivenom is created using a process that obtains antibodies “raised” by immunizing sheep and then harvesting and purifying the product. One of the major benefits of using this product is to take advantage of a lesser incidence of allergic reactions (than have traditionally been observed with previous products). It appears that the situation regarding the incidence of allergic reactions may be better than previously thought.
In the article, “Short Term Outcomes After Fab Antivenom Therapy for Severe Crotaline Snakebite,” Eric Lavonas, MD and colleagues (Ann Emerg Med 2011;57:128-137) examined Read more »
This post, Fab Antivenom Found To Cause Fewer Allergic Reactions Than Previously Thought, was originally published on Healthine.com by Paul Auerbach, M.D..