I have never heard of it. Mojo has always been on Interceptor, but we had a Shih-tzu years ago on Heartguard. I have liked both of them. My vet only carries Interceptor, so I am not much of a help.
__________________ Hi  I'm Jenn  Mom to.....
Mojo  ,LilyGrace & DD  Kate  RIP Mojo  FOREVER in our hearts! |