| Medication | Gene |
| Metformin | ATM |
| Estrogen-containing oral contraceptives | FV |
| Eliglustat | CYP2D6 |
| Saxagliptin | CYP3A4, CYP3A5 |
| Glimepiride, Gliclazide, Glibenclamide, Tolbutamide | CYP2C9 |
Frequency of Cytochrome P450 (CYP2D6, CYP2C9) Metabolizer Types in the population
| Cytochrome | Poor metabolizer | Intermediate metabolizer | Normal metabolizer | Rapid or ultra-rapid metabolizer |
| CYP2D6 | 4-7% | 9-35% | 50-90% | 2-3% |
| CYP2C9 | 3% | 30% | 68% | N/A |