Title : ABCB1 genetic variability and methadone dosage requirements in opioid-dependent individuals.

Pub. Date : 2006 Dec

PMID : 17178268






4 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 Methadone is a substrate for the P-glycoprotein transporter, encoded by the ABCB1 gene, which regulates central nervous system exposure. Methadone ATP binding cassette subfamily B member 1 Homo sapiens
2 This retrospective study aimed to investigate the influence of ABCB1 genetic variability on methadone dose requirements. Methadone ATP binding cassette subfamily B member 1 Homo sapiens
3 ABCB1 genetic variability influenced daily methadone dose requirements, such that subjects carrying 2 copies of the wild-type haplotype required higher doses compared with those with 1 copy and those with no copies (98.3 +/- 10.4, 58.6 +/- 20.9, and 55.4 +/- 26.1 mg/d, respectively; P = .029). Methadone ATP binding cassette subfamily B member 1 Homo sapiens
4 CONCLUSION: Although ABCB1 genetic variability is not related to the development of opioid dependence, identification of variant haplotypes may, after larger prospective studies have been performed, provide clinicians with a tool for methadone dosage individualization. Methadone ATP binding cassette subfamily B member 1 Homo sapiens