Table 2.

Frequencies of CYP3A4, CYP3A5, and CYP2D6 genotypes and inferred phenotypes

GenotypesFrequency, nInferred phenotypePhenotype frequency, n (%)
CYP3A4    
*1/*22 IM 3 (6) 
*1/*41 NM 41 (82) 
*1/*1B RM 6 (12) 
CYP3A5    
*3/*38 PM 40 (80) 
*3/*  
*1/*IM 9 (18) 
*1/*NM 1 (2) 
CYP2D6    
*3/*PM 8 (16) 
*4*  
*5/*  
*4/*10   
*4/*41 IM 14 (28) 
*1/*  
*2/*  
 (*1/*4)x3* IM-NM 2 (4) 
*1/*10 NM 24 (48) 
*1/*29   
*1/*41   
*1/*  
*1/*  
*2/*  
 (*1/*41)x4* RM 2 (4) 
 (*1/*2)x4*   
GenotypesFrequency, nInferred phenotypePhenotype frequency, n (%)
CYP3A4    
*1/*22 IM 3 (6) 
*1/*41 NM 41 (82) 
*1/*1B RM 6 (12) 
CYP3A5    
*3/*38 PM 40 (80) 
*3/*  
*1/*IM 9 (18) 
*1/*NM 1 (2) 
CYP2D6    
*3/*PM 8 (16) 
*4*  
*5/*  
*4/*10   
*4/*41 IM 14 (28) 
*1/*  
*2/*  
 (*1/*4)x3* IM-NM 2 (4) 
*1/*10 NM 24 (48) 
*1/*29   
*1/*41   
*1/*  
*1/*  
*2/*  
 (*1/*41)x4* RM 2 (4) 
 (*1/*2)x4*   

IM, intermediate metabolizer; NM, normal metabolizer; PM, poor metabolizer; RM, rapid metabolizer.

*

Denotes number of CYP2D6 alleles (copy number variation).

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