What to watch with CYP2D6 and Fruchtbarkeit?

CYP2D6 is a key drug-metabolizing enzyme that also processes hormones like estrogen and progesterone. Variants can alter the metabolism of medications used in fertility treatments (e.g., clomiphene, tamoxifen, certain antidepressants). However, direct evidence linking CYP2D6 genetics to fertility outcomes is limited – most data are mechanistic or drug-specific. Fertility is highly multifactorial; lifestyle, age, hormone levels, and other genes are more influential. A DNA test alone does not provide actionable clinical guidance. Do not change any medication without consulting a physician. Evidence grade: mechanistic/unclear.