Classical metabolism status | Activity score 1 | Genotypes |
---|---|---|
Poor metabolizer (PM) | 0.0 | Homozygous null gene |
 | 0.5 | Heterozygous null and reduced metabolism |
Intermediate metabolizer (IM) | 1.0 | Homozygous reduced metabolism |
 |  | Heterozygous null and wildtype |
 | 1.5 | Heterozygous reduced metabolism and wildtype |
Extensive metabolizer (EM) | 2.0 | Homozygous wildtype |
 |  | Heterozygous null and ultra metabolism |
 |  | Heterozygous reduced and ultra metabolism |
Ultra-rapid metabolizer (UM) | > 2.0 | Heterozygous wildtype and ultra metabolism |
 |  | Homozyogous ultra metabolism |