This information is anecdotal,so please accept this information with that caveat.I just assisted in the care of a horse bitten on the leg by a Pacific Diamondback.I was first on scene,and yes,I used my Sawyer Extractor to good effect awaiting the DVM.Horses cannot benefit from antivenom,as the serum is made with horse blood.They survive mainly with supportive care and their advantage of sheer size.I did use an Echinacea herbal wash on the wound and in it's water supply.This herb is being used as an adjunct to traditional care by many DVM's.I learned of the snakebite use from Reevis Mountain School(listed by Doug)in AZ.I cannot delineat the distinct benefits from traditional care and the herbal use.The DVM was impressed just on field observation.Again,this is anectdotal and the best course is rapid evacuation to a proper facility.<br><br>