There is no defined period of time that a dog can be prescribed toceranib. Treatment is continued if toceranib is effective and your dog is tolerating treatment. To best determine the duration of your dog’s treatment, your veterinarian will perform tests to assess their response to treatment, depending on the type and stage of cancer being treated. No vet writer or qualified reviewer has received any compensation from the manufacturer of the medication as part of creating this article. All content contained in this article is sourced from public sources or the manufacturer. Featured Image: Getty/Tashi-Delek