Figure 4.

Amoxicillin purity (90–120% active pharmaceutical ingredient [API] content meets United States Pharmacopeia requirement for purity) and cost (Malawi Kwacha per gram). U.S. buyer (Caucasian and therefore easily identifiable as non-Malawian customer) and Malawi buyer received the same drug quality at the same price from 42 vendors in the Blantyre metro region. Box shows middle two quartiles, whiskers show range of points within (1.5 × interquartile range), and outliers are shown as crosses. This figure appears in color at www.ajtmh.org.