This case should be printed in color. Farmacias Similares, serving Mexico's low-income sector, grew to $600 million sales and 3,400 drugstores while deep reforms to help the poor swept the public health system. Adjacent to each store, for $2 per visit, medical clinics provided access to doctors for 2.3 million people a month. Narrates the growth of the chain, examines the reasons for its success, and projects a pro forma of the company's financial returns. Places Farmacias Similares in the context of Mexico's public health system and the pharmaceutical industry.