Hi Mary. 1-800-PetMeds is a Vet-VIPPS accredited pharmacy and we sell the same exact medication sold to you by your veterinarian. We only dispense U.S. FDA/EPA approved products, which we unconditionally guarantee 100%. Unfortunately, if your vet chooses to not authorize prescriptions to be sent to us, we cannot ship a prescription item to you. In some cases, customers will switch vets as a result. If you choose to do so, you can use our vet locator on our web site to find another vet who will work with us: http://www.1800petmeds.com/vet_directory.jsp
~ Vanessa / PetMeds Pro