Is Pharmakogenetik Medicheck useful for fatigue?

The Pharmakogenetik Medicheck analyzes genetic variants affecting drug metabolism. For fatigue, it is only useful if the fatigue is a side effect of a medication you are taking. In that case, variants in CYP450 enzymes or transporters may indicate altered metabolism leading to over- or underdosing. Without current medication use, the test does not identify a direct cause of fatigue. Fatigue has many potential triggers (sleep deprivation, iron deficiency, thyroid issues, stress), which are better assessed through blood tests or lifestyle analysis. The evidence for using PGx to diagnose or manage fatigue unrelated to drugs is weak. A physician should always determine the indication for a PGx test. Caveat: This test is not a substitute for medical evaluation of fatigue.