Crotalinae venom

Crotalinae venom is a complex mixture of bioactive proteins and peptides produced by pit vipers, a subfamily of venomous snakes that includes rattlesnakes, copperheads, and cottonmouths (StatPearls, 2023). The venom serves both to immobilize prey and initiate digestion, containing a diverse array of toxins such as snake venom metalloproteinases (SVMPs), phospholipases A2 (PLA2s), and serine proteases (Journal of Venomous Animals and Toxins, 2016). These components act synergistically to cause local tissue destruction, systemic coagulopathy, and cardiovascular instability in human victims (NIH, 2021). In a therapeutic context, Crotalinae venom is the primary target for antivenom treatments, which utilize purified antibody fragments to bind and neutralize the toxic components (FDA, 2018). These antivenoms, such as CroFab and Anavip, are essential for managing complications like coagulopathy and preventing permanent tissue damage (Unified Treatment Algorithm, 2011). Understanding the specific composition of Crotalinae venom is crucial for the development of effective treatments for snakebite envenomation and managing its clinical sequelae (WHO, 2017).

Other names

Pit viper venomCrotalid venomRattlesnake venomCopperhead venomCottonmouth venom

The mechanism of action involves the administration of venom-specific antibody fragments (Fab or F(ab')2) that bind to and neutralize the toxic proteins within the venom, preventing their interaction with host tissues and facilitating their clearance (FDA, 2018; StatPearls, 2023).