This is from his book: Heartworm testing and prevention has been a money maker for veterinary clinincs for years. Veterinarians imply that it's dangerous to give the preventative to an infected dog. I am NOT aware of a product currently being used as a monthly preventative that can't be given to a dog infected with Dirofilaria immitis, which is scientific name for heartworm. Doses of ivermetin(the active ingredient in Heartguard), at approximately 40 times as strong as in the preventative, are given to dogs following treatment for heartworm to remove the microfilaria that are still circulating in the bloodstream. Also a little known piece of information tat few veterinnarians will volunteer is that Heartguard, or its active ingredient, if given once a month to a known infected dog for 18 months will cure an animal of infection. Besides using an often overlooked commodity called common sense, if the preventative is any good at all, and they are all excellant, why does one need to test every year before re-giving the medication. There is not room on this forum to go into the issues but if you read the book and this vet just makes for good common sense you will be blown away at the money wasted on so many unnecessary procedures - all that we do because we love our pets and don't want to take chances with their health and our vets have convinced us that these things are necessary and according to Dr. James L Busby D.V.M in practice for 40 years is not. |