Misuse of Prescription Pain Relievers, Stimulants, Tranquilizers, and Sedatives Among U.S. Older Adults Aged ≥50 Years.

Introduction: Misuse of prescription medications has led to higher mortality and morbidity in the U.S. This study investigates medical and nonmedical use of prescription medications (prescription pain relievers, stimulants, prescription tranquilizers, and sedatives) among adults aged ≥50 years.