Associated with delayed stabilization. If carrier of rs9934438 as well, increased risk of severe overanticoagulation.
Zhao F, Loke C, Rankin SC, Guo JY, Lee HS, Wu TS, Tan T, Liu TC, Lu WL, Lim YT, Zhang Q, Goh BC, Lee SC: Novel CYP2C9 genetic variants in Asian subjects and their influence on maintenance warfarin dose. Clin Pharmacol Ther. 2004 Sep;76(3):210-9. [Article]
DeLozier TC, Lee SC, Coulter SJ, Goh BC, Goldstein JA: Functional characterization of novel allelic variants of CYP2C9 recently discovered in southeast Asians. J Pharmacol Exp Ther. 2005 Dec;315(3):1085-90. Epub 2005 Aug 11. [Article]
The Human Cytochrome P450 (CYP) Allele Nomenclature Database [Link]