Merial Heartguard Merial does not back Heartguard's effectiveness Nationwide

 My dog is undergoing heartworm treatment :'( We didn't miss a single dose of #Heartguard for her or our other 4 dogs however, since ONE box was purchased from a different vendor than our vet's office #Merial will not stand behind their product guarantee to assist with her treatment. Even though the FDA's guidelines (according to the American Heartworm Society) states: "This means heartworm preventives must be purchased from your veterinarian or with a prescription through a pet pharmacy". The #Merial rep kept saying, "I'm sorry your vet didn't clarify our guarantee before you made an outside* purchase". Excuse me! I'm sorry my dog has to endure these taxing treatments and the potential for lifelong complications of a life-threatening disease that NONE of our other dogs happened to contract while receiving the same medication from the outside* vendor. *Outside vendors = any store (online or brick & mortar) that is not your vet. Even though a vet has to fax a prescription. Even though the product is produced, packaged, sealed, and the expiration date issued by #Merial. #Merial "cannot guarantee where these vendors purchased #Heartguard for resale.