chronic hypercalcaemic state 200-400 IU once-bid. Osteolysis due to bone pain 200-400 IU once-bid. Paget's disease 200 IU once daily. Postmenopausal osteoporosis100-200 IU once daily or 200 IU every 2nd day in several divided doses if necessary.Algoneurodystrophic disorder 200 IU once daily for 2-4 wk then 200 IU every 2nd day for up to 6 wk.