Older adults, especially those who are admitted to hospitals, are at risk for potentially dangerous side effects if they are taking multiple medicines. Taking several medications at the same time is called polypharmacy. Of special concern are benzodiazepine and non-benzodiazepine sedative hypnotics. These medications, which include lorazepam, clonazepam, zopiclone, and others, are often prescribed for sleep–despite the...