Pharmacogenomics is an evolving field of medicine that studies how a person's genetic makeup influences their response to medications. As healthcare continues to move toward personalized treatment approaches, pharmacogenomics is helping healthcare professionals better understand why certain drugs work well for some individuals while causing side effects or reduced effectiveness in others. By combining genetics and pharmacology, this field supports more informed treatment decisions and has the potential to improve medication safety and outcomes. Understanding pharmacogenomics offers valuable insight into the future of personalized healthcare and modern medical innovation.