Staff Answer
May 08, 2026 - 02:25 PM
You could approach this in two ways. Since the heartworm test is actually looking for antibodies in the bloodstream, a positive (even light positive), means that your dog has antibodies because he has been exposed. But that doesn't mean your dog has to be treated for heartworm as the majority of time a dog's own immune system will eliminate the heartworm microfilariae on its own without treatment. If a dog tests positive on the antigen test, vets often recommend further tests to confirm and assess the severity of infection. Alternatively, you can go ahead and treat your dog with Ivermectin® to kill any potential heartworms. There are certain breeds that are sensitive to this medication including herding breeds so make sure this is okay for your dog. You can find out the correct dosage from your veterinarian. As far as supplement recommendations, we suggest using our Heart Tonic to support proper blood flow through the heart and our Systemic Enzymes to ensure healthy blood, again to protect the heart, and to help clear organic wastes from the blood.
