Before starting a preventative program, all dogs that could possibly be infected with older heartworms should be tested.Macrocyclic Lactone (ML)Macrocyclic lactones are highly effective parasiticides utilised in preventing heartworm infections. Their principal benefits lie in their security and ease of management of once-monthly doses. Every one of the macrocyclic lactones can have added intestinal parasite or outside parasite action, which could be the determining factor that a veterinarian uses to recommend a specific product for a certain region or a single circumstance.
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