Ive been looking in my jb catalog and saw that biospot is alot cheaper than frontline and seems to do the same thing. Ive always used frontline for my dobe and russel, Ive wondered if anyone has tried this. I cant even get anything for nina because the pds start at 15 so shes back to the vet for hers, and I need to get her rabies shot since she is 7 months now. And she started chasing birds like a big shot!!