National Institutes of Health-supported study examines prescribing patterns. Prescription use of benzodiazepines — a widely used class of sedative and anti-anxiety medications — increases steadily with age, despite the known risks for older people, according to a comprehensive analysis of benzodiazepine prescribing in the United States. Given existing guidelines cautioning health providers about benzodiazepine use among older adults, findings from the National Institutes of Health-funded study raise questions about why so many prescriptions — many for long-term use — are being written for this age group.