Overdose Deaths in the United States Involving Benzodiazepines, 1999 through 2015. An upwards trend, with 9,000 deaths in 2015. “Benzodiazepines have proven utility when they are used intermittently and for less than 1 month at a time. But when they are used daily and for extended periods, the benefits of benzodiazepines diminish and the […]