Vet Q & AMy dog's heartworm medicine is Iverhart Max, not Plus. Is it safe?
The main difference is that the Iverhart Max will control an additional intestinal parasite (tapeworms). Otherwise the medications will both protect against heartworms, roundworms, hookworms and are generally well tolerated. The Max product does contain an additional ingredient (to kill the tapeworms). Again, this ingredient is generally well tolerated but watch Benji after giving him the medication for any signs of GI upset. Thank you for your questions.
Updated on September 24th, 2025