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Interindividual Variation in the Pharmacokinetics of Δ9‐Tetrahydrocannabinol as Related to Genetic Polymorphisms in CYP2C9

Interindividual Variation in the Pharmacokinetics of Δ9‐Tetrahydrocannabinol as Related to... The impact of the CYP2C9 polymorphism on the pharmacokinetics of orally administered Δ9‐tetrahydrocannabinol (THC) was studied in 43 healthy volunteers. THC pharmacokinetics did not differ by CYP2C9*2 allele status. However, the median area under the curve of THC was threefold higher and that of 11‐nor‐9‐carboxy‐9‐tetrahydrocannabinol was 70% lower in CYP2C9*3/*3 homozygotes than in CYP2C9*1/*1 homozygotes. CYP2C9*3 carriers also showed a trend toward increased sedation following administration of THC. Therefore, the CYP2C9*3 variant may influence both the therapeutic and adverse effects of THC. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Clinical Pharmacology & Therapeutics Wiley

Interindividual Variation in the Pharmacokinetics of Δ9‐Tetrahydrocannabinol as Related to Genetic Polymorphisms in CYP2C9

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References (26)

Publisher
Wiley
Copyright
© 2009 American Society for Clinical Pharmacology and Therapeutics
ISSN
0009-9236
eISSN
1532-6535
DOI
10.1038/clpt.2008.213
Publisher site
See Article on Publisher Site

Abstract

The impact of the CYP2C9 polymorphism on the pharmacokinetics of orally administered Δ9‐tetrahydrocannabinol (THC) was studied in 43 healthy volunteers. THC pharmacokinetics did not differ by CYP2C9*2 allele status. However, the median area under the curve of THC was threefold higher and that of 11‐nor‐9‐carboxy‐9‐tetrahydrocannabinol was 70% lower in CYP2C9*3/*3 homozygotes than in CYP2C9*1/*1 homozygotes. CYP2C9*3 carriers also showed a trend toward increased sedation following administration of THC. Therefore, the CYP2C9*3 variant may influence both the therapeutic and adverse effects of THC.

Journal

Clinical Pharmacology & TherapeuticsWiley

Published: Mar 1, 2009

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