Control of venom-induced tissue injury in copperhead snakebite patients: a post hoc sub-group analysis of a clinical trial comparing F(ab') to Fab antivenom.

Introduction: Fab antivenom (FabAV) halts progression of tissue injury and improves recovery in copperhead snakebite. It is unknown if F(ab')AV does as well. The objective of this study was to compare control of tissue injury in copperhead snakebite patients treated with F(ab')AV versus FabAV.