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PetSmart carries most major FDA-approved heartworm preventatives, including:
: During checkout, you provide your vet's information. PetSmart will then contact your vet directly to verify the prescription. can you buy heartworm medicine at petsmart
: Vets typically require a negative heartworm test before writing a new prescription. Giving preventative to a dog that already has heartworms can cause severe or fatal reactions. including: : During checkout