Trends in Prescription Drug Use Among Adults in the United States From 1999–2012

Obstet Gynecol Surv 2016;71(3):131–133 Prescription drug usage is a major expenditure in the United States, and evidence indicates that this usage is increasing. Because practice patterns are continually evolving, an updated comprehensive assessment of prescription drug use is important to reflect the changing health needs, advances in treatment, new clinical guidelines, the entrance or exit of drugs from the market, and shifts in policies regarding drug marketing and promotion.