Setsi sena se sebelisetsoa ho lemoha boleng ba in vitro polymorphism ea liphatsa tsa lefutso tsa CYP2C19 CYP2C19 * 2 (rs4244285, c.681G> A), CYP2C19 * 3 (rs4986893, c.636G> A), CYP2C19 * 16 c680 (rs4986893) > T) ho DNA ea genomic ea lisampole tsa mali a motho kaofela.