Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1991-3-1
pubmed:abstractText
3-O-Methyldopa (OMD) is the principal circulating metabolite formed from exogenously administered levodopa. We studied the effect of nitecapone (OR-462), a novel inhibitor of catechol-O-methyltransferase (COMT), on OMD formation in cynomolgus monkeys following intravenous levodopa administration. The drug does not cross the blood-brain barrier, and therefore inhibits only peripheral OMD formation. At a dose of 5 mg/kg, nitecapone reduced the area under the OMD concentration-time curve by 50%. Inhibition of OMD production was maximal at 65% following a dose of 10 mg/kg. A dose of 15 mg/kg produced no further inhibition. The plasma pharmacokinetics of carbidopa, levodopa, and OMD in the monkeys were similar to those in humans. No adverse physiological effects of nitecapone were observed. In single-dose studies, OR-462 is an effective peripheral COMT inhibitor.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0362-5664
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
544-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Effect of nitecapone (OR-462) on the pharmacokinetics of levodopa and 3-O-methyldopa formation in cynomolgus monkeys.
pubmed:affiliation
Department of Neurology and Neuroscience, Cornell University Medical College, Burke Rehabilitation Center, White Plains, New York.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't