I know... sounds interesting.
The only downfall is that it's absorbed through the skin (back of neck) and it would probably take multiple tubes... it was almost $25 for A small tube. The tube I got for my cat says 5-11 pounds and its tiny. The dose barely covered my finger tip when I put it on him and it's oily. I think I got more in his fur than on his skin.
For whatever reason, it looks like its only licensed for cats. I wonder why not dogs or livestock? I should email them and ask.