Local view for "https://dbmi-icode-01.dbmi.pitt.edu/dikb/resource/Evidence/1220"
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?:Evidence_enzyme_system |
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?:Evidence_type |
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?:content |
""Risperidone is extensively metabolized in the liver. The main metabolic pathway is through hydroxylation of risperidone to 9-hydroxyrisperidone by the enzyme, CYP 2D6. A minor metabolic pathway is through N-dealkylation. The main metabolite, 9-hydroxyrisperidone, has similar pharmacological activity as risperidone. Consequently, the clinical effect of the drug (e.g., the active moiety) results from the combined concentrations of risperidone plus 9-hydroxyrisperidone...CYP 2D6, also called debrisoquin hydroxylase, is the enzyme responsible for metabolism of many neuroleptics, antidepressants, antiarrhythmics, and other drugs. CYP 2D6 is subject to genetic polymorphism (about 6%�8% of Caucasians, and a very low percentage of Asians, have little or no activity and are "poor metabolizers") and to inhibition by a variety of substrates and some non-substrates, notably quinidine. Extensive CYP 2D6 metabolizers convert risperidone rapidly into 9-hydroxyrisperidone, whereas poor CYP 2D6 metabolizers convert it much more slowly. Although extensive metabolizers have lower risperidone and higher 9-hydroxyrisperidone concentrations than poor metabolizers, the pharmacokinetics of the active moiety, after single and multiple doses, are similar in extensive and poor metabolizers""
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"06/16/2009 16:37:55"
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All properties reside in the graph file:///home/swish/src/ClioPatria/guidelines/dikb.ttl
The resource appears as object in one triple:
{ cyp2d6_controls_formation_of_9-hydroxyrisperidone, <http://purl.org/swan/1.2/swan-commons#citesAsSupportingEvidence>, evidence_1958 }
Context graph