Calcitriol as the active form of Vitamin D. By taking a carefully measured dose of Calcitriol in capsule or liquid form we intend to keep the parathyroid glands from producing a toxic level of PTH. The quantity of Calcitriol prescribed needs to be calculated specifically for your cat or dog by your veterinarian and must be prepared by a compounding pharmacy. Because PTH levels are difficult to control once kidney failure is well underway, it is desirable to administer Calcitriol at low doses as early as possible in kidney failure to avoid PTH excess from occurring in the first place.
