: The FDA classifies all heartworm preventatives as prescription-only drugs.
: Dogs must test negative before starting or renewing a prescription, as giving medication to an infected dog can cause severe, life-threatening reactions. buying heartworm medication for dogs
Heartworm prevention is a lifelong commitment that requires a veterinarian's prescription and regular testing. While online pharmacies offer convenience, purchasing through your vet ensures product safety and often includes manufacturer guarantees that internet retailers cannot provide. Buying Requirements : The FDA classifies all heartworm preventatives as