Walid F. Gellad, MD, MPH

Regardless of the number of manufacturers, generic drug prices presented double-digit average increases from 2012 to 2015.

Enrollees in Medicaid plans employing prior authorization policies for opioid medications may have lower rates of opioid medication abuse and overdose.

There were no significant differences in the risk of ambulatory care—sensitive condition hospitalization or mortality between patients who initiated analogue insulin compared with the neutral protamine Hagedorn.

From 2001 to 2011, the US Food and Drug Administration approved 9 single-enantiomer drugs with racemic precursors. None showed pre-approval evidence of improved efficacy over the racemic precursor.

High-risk drug use increased slightly among seniors gaining Medicare Part D coverage; however, high-risk drugs account for a small share of total drug use.

Substantial variation in prescription spending and use of brand-name drugs exists across the VA healthcare system, with no apparent relationship to quality of care.