Myths vs facts: Pharmakogenetik Medicheck and Schlaf

Myths vs. Facts: Pharmacogenetics (Medicheck) and Sleep Myth: A DNA test like Medicheck can precisely predict which sleep medication will work for you and which won't. Fact: Pharmacogenetics can offer clues about how certain drugs are metabolized – e.g., via CYP2C19 or CYP2D6. For sleep medications such as zolpidem, melatonin, or sedating antidepressants, the evidence is limited and often conflicting. Most studies are mechanistic or based on GWAS, not on randomized controlled trials with sleep endpoints. Myth: The test replaces a doctor's prescription and dose adjustment. Fact: In Germany, pharmacogenetic tests are classified as wellness tools under the Genetic Diagnostics Act (GenDG), not as medical devices. They cannot diagnose conditions or replace clinical decisions. Actual drug response depends on dose, timing, co-medications, liver function, age, and lifestyle. Conclusion: Pharmacogenetics provides interesting but often weak signals. For sleep, the evidence is mostly mechanistic or associative. Always consult a physician for sleep issues – a genetic test alone is no substitute for proper medical evaluation.