I would first do a search online and read up on this medication. It sounds to me like it could be for heartworms or some such? Then I would obtain another vets opinon in another clinic. I know my vets are not concerned about heartworms for my cats but in some areas of the country it is a problem. But it is definately worth doing the research before just blindly taking one vets opinion.

I always say...."They didn't all graduate with A's"

Denyce