Don't know if any of you are big on "green" things. But since I've been growing and harvesting organic produce for the last 8 summers, I like to at least edumuhcate myself on some stuff, whether I act upon it or not. I am by no chance a "granola head".
This site has some neat info on the chemicals used in a lot of pet meds, and it gives a breakdown of which "toxins" are really harmful and whatnot.
Look if you like