Rx Petfood is an online store providing Hill's Prescription Diet, Iams Veterinary Formula, Purina Veterinary Diets, and Royal Canin Veterinary Diets delivered direct to your door. Whether you shop for special prescription vet diets such as k/d for your cat's kidney problems, r/d for your overweight dog, or Purina DM for your diabetic cat, you will find RxPetfood to be a fast and friendly online shopping experience.