Composition
Cap 0.25 mcg/0.5 mcg: Calcitriol 0.25 mcg/0.5 mcg. Inj: 1 mcg/2 mcg: Per ml: Calcitriol 1 mcg/2 mcg
Indications & Dosage
Renal osteodystrophy: Adult: Initially 250 nanograms daily, adjusted in steps of 250 nanograms every 2-4 weeks if required; usual dose 0.5-1 microgram daily Renal osteodystrophy (in patients with normal or only slightly reduced plasma-calcium concentration): Adult: Initially 250 nanograms once daily on alternate days, adjusted in steps of 250 nanograms every 2-4 weeks if required; usual dose 0.5-1 microgram daily Established postmenopausal osteoporosis: Adult: 250 nanograms twice daily, plasma-calcium concentration and creatinine to be monitored. Hypocalcaemia in patients undergoing dialysis or chronic renal failure. Reduction of parathyroid hormone in renal osteodystrophy: BY IV INJ: Adults: Initially: 0.5 mcg three times weekly by IV Inj at the end dialysis. Titrate: by 0.25 to 0.5 mcg at two to four wk intervals. Maintenance: 0.5-3 mcg three times weekly. Children: Not recommended.
Contraindications
Hypercalcaemia, vit D toxicity.
Precautions
Maintain adequate calcium in take. Monitor serum calcium, phosphorous levels regularly; discontinue if hypercalcaemia occurs.
Interactions
Vit D and derivatives, magnesium antacids, an ticonvulsants, cardiac glycosides, barbiturates, corticosteroids.
Pregnancy
aution advised
Lactation
Not recommended.
Side Effects
Symptoms of vit D toxicity. Hypercalcaemia. Rarely, hypersensitivity.