Dr. Aditi Shendre shares her team's analysis of pharmacology knowledge gaps in opioids in the maternal and pediatric populations. Surprisingly, there is substantial disparity between the most commonly researched and prescribed opioids. In particular, the opioid pharmacology knowledge gaps are larger in pregnant women and for the highly prescribed opioids hydrocodone and oxycodone. Learn valuable lessons for practice from their analysis of this data set. Read the full text manuscript at: https://accpjournals.onlinelibrary.wiley.com/doi/10.1002/phar.70024.