A prospective multicenter observational study of Viperidae polyvalent immune F(ab') antivenom administration for the treatment of viper envenomation in dogs.

Objective: To test an equine-derived polyvalent viperid antivenom (EPVA) in the treatment of dogs with evidence of viper envenomation.

Design: Prospective, multicenter observational study.

Setting: Veterinary emergency and critical care hospitals.