: Major retailers with pet divisions, such as Walmart PetRx or Costco , often carry heartworm preventatives at lower prices.
Once your pet has a current, negative heartworm test and a prescription from a vet, you can purchase medication from the following types of retailers: where to buy heartworm medication
: Most pet owners buy directly from their vet during their annual checkup. This is often the most convenient way to ensure you get the correct dosage immediately. : Major retailers with pet divisions, such as
: Pets must be tested for existing heartworms before starting medication. Giving preventative meds to a pet that is already heartworm-positive can cause a dangerous, sometimes fatal, reaction. : Pets must be tested for existing heartworms
: These are FDA-approved medications that require professional oversight to ensure the correct dosage and frequency for your pet’s specific weight and health status. Tips for Saving Money Heartworm Basics
: Reputable sites like 1-800-PetMeds , Chewy, and Allivet offer competitive pricing on brands like Heartgard and Interceptor. You will need to provide your vet's information so the pharmacy can verify the prescription.