Dosage form: capsule
Drug class:Vitamins
Medically reviewed by Drugs.com. Last updated on Jul 1, 2020.
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Calcitriol Capsules 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:
