Advancement in the 21st century is revolutionizing medicine to be more precise and clinically tailored for individual patients. While we are equipped with more efficient drugs, choosing the right drug choice for a specific subgroup of patients is still an active area of research. In the past few years, more reports have shown that ethnicity contributes significantly towards the heterogeneous drug response. Understanding how the genetic backgrounds are associated with commonly observed variability in therapeutic sensitivity will help fulfill this critical research gap. More information