Although many national surveys of medicine prices and affordability have been conducted, fewer analyses have compared these variables internationally, with most research dating back to 2011 or earlier.(4-20) Many of these studies have focused on high-income countries. Of the studies that also included low- and middle-income nations, most compared the prices of 15 or fewer medicines or included a small number of countries, limiting the generalizability of those findings. Therefore, little is known about the relationship between national income and drug prices. The question remains whether some poor countries routinely pay more than rich countries for the same prescription drugs, possibly owing to weaker pharmaceutical pricing policies.
This cross-sectional study used global data on pharmaceutical sales to compare the list prices of 549 essential medicines in 72 high-, middle-, and low-income markets (covering 87 countries) in 2022, both in nominal and purchasing power–adjusted terms. We also evaluated the affordability of 8 essential medicines used to treat major causes of death and disability globally.