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: Vetsource will contact your veterinarian directly to verify the prescription. Wait Time : Verification usually takes 1–2 business days .

: If you have a physical paper prescription, you can choose to mail the original copy to Vetsource. buy heartgard amazon

: Locate the specific Heartgard Plus product on Amazon that matches your dog's weight (e.g., Up to 25 lbs, 26-50 lbs, or 51-100 lbs). : Vetsource will contact your veterinarian directly to