
CYP2C19
CYP2C19 is a gene that produces an enzyme belonging to the cytochrome P450 family, which helps the body process certain medications. Variations in this gene can affect how quickly or slowly a person metabolizes drugs like antidepressants, blood thinners, and antiepileptics. These differences can influence medication effectiveness and the risk of side effects. Knowing a person's CYP2C19 genetic makeup can guide healthcare providers in choosing the right dose or medication to improve treatment outcomes and minimize adverse reactions.