We use Interceptor as well. I like the fact that it is just the heartworm preventative and doesn't have flea/tick protection in it. It also has the lowest number of incidents reported out of all the heartworm meds.
Heartworm is a very serious disease and if contracted, the treatment can kill our little ones. This is the one area where I don't hesitate to medicate.
__________________  Sissy & Angel |