How to Buy Heartworm Medication

Every dog in the United States is at risk of heartworm infection. Heartworms are transmitted to a dog when it is bitten by an infected mosquito. Once they infect a dog, the heartworms mature and reproduce in the dog's heart, growing to the size of pieces of spaghetti. If left untreated they will eventually stop the flow of blood through the pet's heart and the dog will die of heart failure. There are monthly topical and oral medications available that can prevent a heartworm infection. You can buy these products from your veterinarian, or at animal supply stores and from online pharmacies with a prescription from your veterinarian.

Things You'll Need

  • Prescription from veterinarian
  • Computer with Internet connection, if buying online

Instructions

    • 1

      Make an appointment with your veterinarian to have your dog tested for heartworms. The veterinarian will draw blood to determine your dog's heartworm infection status.

    • 2

      If your dog is negative for heartworms, you can buy preventative from your veterinarian or you can ask your doctor to write a prescription you can take to an animal supply store or provide to an online pharmacy.

    • 3

      If your dog is positive for heartworm infection, she will be treated (likely with a series of injections). Once she is treated and obtains a heartworm negative status, your veterinarian can sell you the preventative or provide you with a prescription.

    • 4

      The prescription you have is now good for one year. You can take it to an animal supply store or send it to an online retailer to obtain your dog's preventative. At the end of the year, your veterinarian may require your dog to have another heartworm test before issuing a new prescription.

    • 5

      If you're buying your medication online, find an Internet retailer who is a Verified Internet Pharmacy Practice Site to ensure you are dealing with a legitimate business that will provide you with the correct and effective preventative for your pet. The pharmacy will provide you with instructions for sending your dog's prescription so your order can be filled.