CYP2D6 genotypes in a Japanese population: low frequencies of CYP2D6 gene duplication but high frequency of CYP2D6*10

Clinical Evaluation of Medicines and Therapeutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan Received 18 August 1999; accepted 4 January 2000 Correspondence to Junichi Azuma, Clinical Evaluation of Medicines and Therapeutics, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565–0871, Japan Tel: +81 6 6879 8258; fax: +81 6 6879 8259; e-mail: [email protected]