Medication response can vary from one person to another, and genetics may play a role in how some drugs are processed by the body. This is why DNA testing for medication has become an area of interest in personalized medicine. Certain genetic tests examine variations involved in drug metabolism, which may provide healthcare professionals with additional information when considering specific medications. A DNA test for drug metabolism does not guarantee that a particular medicine will work or prevent every possible side effect. It is simply another source of information that may be relevant in appropriate circumstances. People researching medication DNA testing should ask which medications and genes are covered and whether the results are intended for clinical decision making. It is also important not to change or stop medication based on a genetic test without speaking to a qualified healthcare professional. Genetic information can be valuable when used responsibly and interpreted in the right context. Have you discussed medication response or genetic testing with your healthcare provider before?