Potential cause of breakdowns snake venom

[Clockerbob]

"It can enable horses to run through pain and injury.".....
"The illegal practice involves injecting small amounts of snake venom into the affected area effectively dulling the pain of injury and enabling the horse to race while injured.".......

"Until recently authorities in the United States had no effective test to detect snake venom in a horses system."......

http://www.barossaherald.com.au/news/lo ... 76174.aspx