Dosage & Administration
Oral: Postmenopausal osteoporosis: 0.25 mcg bid.
Oral: Renal osteodystrophy: For correction of Ca and phosphorus metabolism abnormalities: Initially, 0.25 mcg daily. Patient with normal or slightly reduced Ca levels: 0.25 mcg every other day. If no response w/in 2-4 wk, increase daily dose by 0.25 mcg at 2-4 wk intervals. Immediately stop treatment if serum Ca levels rise to 1 mg/100 mL (250 μmol/L) above normal (9-11 mg/100 mL or 2,250-2,750 μmol/L), or serum creatinine rises to >120 μmol/L.