for dogs. The most commonly used oral steroids for allergies are prednisone and Temaril-P. Some Lymphoma is a frequent cancer of dogs. J Vet Intern Med. Nov-Dec;8(6) Response of canine mast cell tumors to treatment with oral prednisone. McCaw DL(1), Miller MA, Ogilvie GK. Prednisone is a drug that is often prescribed to dogs with cancer, but how exactly does prednisone help dogs with cancer? What is this drug's.