
Paricalcitol (chemically it is 19-nor-1,25-(OH)2-vitamin D2. Marketed by Abbott Laboratories under the trade name Zemplar) is a drug used for the prevention and treatment of secondary hyperparathyroidism (excessive secretion of parathyroid hormone) associated with chronic renal failure. It is an analog of 1,25-dihydroxyergocalciferol, the active f...
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http://en.wikipedia.org/wiki/Paricalcitol

A substance that is being used to treat overactive parathyroid glands in patients with kidney failure. It is also being studied in the treatment of cancer. Paricalcitol belongs to the family of drugs called vitamin D analogs.
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http://www.cancer.gov/dictionary?expand=P

(par″ĭ-kal´sĭ-tol) a synthetic analogue of vitamin D, used for prevention and treatment of hyperparathyroidism secondary to chronic renal failure; administered intravenously.
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http://www.encyclo.co.uk/local/21001

Paricalcitol: A vitamin D analogue. Brand name: Zemplar. In 1998 paricalcitol was approved by the FDA for the treatment of hyperparathyroidism due to chronic renal failure. It causes less elevation of calcium than calcitriol, another vitamin D analogue and is associated with a lower mortality rate than calcitriol in patients on long-term dialysis.
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http://www.medterms.com/script/main/art.asp?articlekey=23920
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