Benzodiazepines should be administered with extreme caution in the elderly due to the risk of excessive sedation, confusion, falls, and fractures. Mirtazapine (Remeron) and buspirone (Buspar; brand discontinued) are also efficacious in treating GAD in patients who do not respond to at least two SSRI or SNRI trials.
https://recoverypartnernetwork.com/drug/benzodiazepine/benzodiazepine-addiction