Sales of prescription opioid painkillers have quadrupled since 1999, according to the Centers for Disease Control and Prevention. Rich Pedroncelli/AP hide caption

itoggle caption Rich Pedroncelli/AP
Vidhya Nagarajan for NPR

Officers Ned Bandoske (left) and Ernest Stevens are part of San Antonio's mental health squad — a six-person unit that answers the frequent emergency calls where mental illness may play a role. Jenny Gold/Kaiser Health News hide caption

itoggle caption Jenny Gold/Kaiser Health News

Gabapentin, sold under the brand name Neurontin, helps some people cut down on drinking. hide caption

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An FDA advisory panel voted to increase controls on painkillers containing hydrocodone, such as this generic version of Vicodin. Sue Ogrocki/Associated Press hide caption

itoggle caption Sue Ogrocki/Associated Press