Dogs - Buying Heartworm Medication For

: Dogs must test negative before starting or renewing a prescription, as giving medication to an infected dog can cause severe, life-threatening reactions.

: Even for dogs on year-round prevention, annual testing is recommended to ensure the product is working and that no doses were missed or spit out. Where to Purchase Heartworm in Dogs buying heartworm medication for dogs

: The FDA classifies all heartworm preventatives as prescription-only drugs. : Dogs must test negative before starting or