As we reported in August 2011, Cooper's beloved dog, Sophie, died after being given a drug called Rimadyl. Cooper later sued, and now he's prevailed against the pharmaceutical giant.

Rimadyl was the first non-steroidal anti-inflammatory drug (NSAID) specifically created for dogs. Today, there are many similar drugs.

Cooper and Smith blame a drug called Rimadyl for this trauma -- and they've filed suit against Pfizer, the drug giant that makes it. "I know we're going up against Goliath," Cooper says.

On July 26, 2009, Sophie died from severe liver degradation. The suit accuses Pfizer of negligence for its lack of properly informing pet owners of the risks associated with the use of Rimadyl.

My 14 year old Border Collie has been diagnosed for the second time with collitis. It seems to occur while he is on Rimadyl (which he takes for his severe arthritis) but then when I take him off ...