País: Estats Units
Idioma: anglès
Font: NLM (National Library of Medicine)
CALCITRIOL (UNII: FXC9231JVH) (CALCITRIOL - UNII:FXC9231JVH)
Atlantic Biologicals Corps
CALCITRIOL
CALCITRIOL 0.25 ug
ORAL
PRESCRIPTION DRUG
Calcitriol capsule is indicated in the management of secondary hyperparathyroidism and resultant metabolic bone disease in patients with moderate to severe chronic renal failure (Ccr 15 to 55 mL/min) not yet on dialysis. In children, the creatinine clearance value must be corrected for a surface area of 1.73 square meters. A serum iPTH level of ≥ 100 pg/mL is strongly suggestive of secondary hyperparathyroidism. Calcitriol capsule is indicated in the management of hypocalcemia and the resultant metabolic bone disease in patients undergoing chronic renal dialysis. In these patients, calcitriol administration enhances calcium absorption, reduces serum alkaline phosphatase levels, and may reduce elevated parathyroid hormone levels and the histological manifestations of osteitis fibrosa cystica and defective mineralization. Calcitriol capsule is also indicated in the management of hypocalcemia and its clinical manifestations in patients with postsurgical hypoparathyroidism, idiopathic hypoparathyroidism, and pseu
Product: 17856-0723 NDC: 17856-0723-1 1 CAPSULE in a DOSE PACK
Abbreviated New Drug Application
CALCITRIOL- CALCITRIOL 0.25 MCG CAPSULE ATLANTIC BIOLOGICALS CORPS ---------- CALCITRIOL CAPSULES (0.25 MCG & 0.5 MCG) RX ONLY DESCRIPTION Calcitriol is a synthetic vitamin D analog which is active in the regulation of the absorption of calcium from the gastrointestinal tract and its utilization in the body. Calcitriol is available as capsules containing 0.25 mcg or 0.5 mcg calcitriol All dosage forms contain butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) as antioxidants. The capsules contain medium chain triglycerides. Gelatin capsule shells contain glycerin, sorbitol, with the following dye systems: 0.25-mcg FD&C Yellow No. 6, FD&C red No.3 and titanium dioxide; 0.5 mcg- FD&C Yellow No. 6, FD&C red No.3 and titanium dioxide. The imprinting ink contains propylene glycol, shellac, black iron oxide, isopropyl alcohol, N-butyl alcohol and ammonium hydroxide. Calcitriol is a white, crystalline compound which occurs naturally in humans. It has a calculated molecular weight of 416.65 and is soluble in organic solvents but relatively insoluble in water. Chemically, calcitriol is 9, 10-seco(5Z,7E)-5,7,10(19) cholestatriene-1α, 3β, 25-triol and has the following structural formula: CALCITRIOL The other names frequently used for calcitriol are lα,25-dihydroxycholecalciferol, 1, 25- dihydroxyvitamin D , 1,25-DHCC, 1,25(OH) D and 1,25-diOHC. CLINICAL PHARMACOLOGY Man's natural supply of vitamin D depends mainly on exposure to the ultraviolet rays of the sun for conversion of 7-dehydrocholesterol in the skin to vitamin D (cholecalciferol). Vitamin D must be metabolically activated in the liver and the kidney before it is fully active as a regulator of calcium and phosphorus metabolism at target tissues. The initial transformation of vitamin D is catalyzed by a vitamin D -25-hydroxylase enzyme (25-OHase) present in the liver, and the product of this reaction is 25-hydroxyvitamin D [25-(OH)D ]. Hydroxylation of 25-(OH)D occurs in the mitochondria of kidney tissue, activated by the renal 25-hydroxyvitamin Llegiu el document complet