Is there an important difference between HeartGuard and Interceptor? I switched vets recently and the current one favors HeartGuard claiming he feels it works better than the others. I have been using Interceptor on my dog all along. The obvious difference to me is I found HeartGuard to be slightly less costly.
Interceptor kills intestinal whipworms and heartgard does not. Doth are good. I do not have a preference unless the dog has a history of whipworm infestation. vetcare