Myths vs facts: Pharmakogenetik Medicheck and Fruchtbarkeit

Myths vs facts: Pharmacogenetics (Medicheck) and fertility. A common myth is that a pharmacogenetic test like Medicheck can directly reveal the cause of fertility problems. Fact: Pharmacogenetics studies how genes affect drug metabolism (e.g., CYP2C9 for warfarin). Some enzymes (e.g., CYP3A4) also metabolize hormones, but the effect of a single variant on fertility is usually small and not clinically predictive. Fertility is multifactorial: age, hormone levels, lifestyle, environment, and genetic syndromes (e.g., FMR1, CFTR) play major roles. A standalone PGx test does not replace a full fertility workup. Evidence for a direct link between common PGx variants and fertility is weak to moderate. Caution: self-adjusting medications based on such results can be dangerous. Consult a reproductive specialist.