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NFPA 704
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2
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인산시타글립틴 C화학적 특성, 용도, 생산
개요
Sitagliptin is the first novel dipeptidyl peptidase IV inhibitor
from Merck for the treatment of type 2 diabetes without
weight gain and the incidence of hypoglycemia was similar
to placebo. Sitagliptin acts by enhancing the body’s incretin
system, which helps to regulate glucose by affecting β
and α cells in the pancreas.
화학적 성질
White Solid
용도
A trizolopyrazine dipeptidyl peptidase IV inhibitor. It has recently been approved for the therapy of type II diabetes.
일반 설명
Sitagliptin phosphate is the 1:1 phosphoric acid salt ofsitagliptin free base (i.e., (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)-2-butanamine), and is marketed(Junuvia, 2006) in 25-, 50-, and 100-mg tablets. Acombination product with metformin (Janumet, 2007) intwo strengths (50 mg/500 mg and 50 mg/1,000 mgsitagliptin/metformin) is also available, and sitagliptin mayalso be prescribed with a thiazolidinedione, or possibly a sulfonylurea.The phosphate salt provides very high water solubility.The bioavailability of orally administered sitagliptinis~87%. The drug exhibits relatively low plasma protein binding (~38%), a relatively large volume of distribution(198 L), and a terminal elimination half-life of 12 hours.About 79% of a 100-mg oral dose is excreted unchanged inurine, the balance as trace-level metabolites (CYP3A4, lessercontribution by CYP2C8) in urine or feces: 87% of administeredradioactivity is excreted in urine, and 13% in feces.Active tubular excretion is reported to play a key role in renalclearance of unchanged drug, and may be mediated at least inpart via the organic anion transporter hOAT-3.