What have you heard about using medicinal cannabis derivatives to treat pets?

From the New York Times, "Pets on Pot: The Newest Customer Base for Medical Marijuana."

I have heard of people in the Santa Fe area using certain products of this nature to treat their dogs for a variety of conditions with some success. The problem with employing such medications more often is the lack of really rigorous research on how medicinal marijuana could help or harm pets. It's always nice to have more options in the toolbox when it comes to treating conditions like arthritis or glaucoma, so hopefully more data will become available regarding how and when these medications can be employed.