Anti-Anxiety Medicines and Hypnotics
The chapter on anti-anxiety medicines and hypnotics discusses and reviews the use of benzodiazepines and barbiturates, medicines without abuse potential used for the treatments of anxiety (such as buspirone, propranolol, clonidine, prazosin, hydroxyzine, pregabalin, gabapentin, and quetiapine), as well as newer hypnotics including “z-drugs” considered for insomnia and sleep. It reviews their mechanisms of action, clinical characteristics, potential medication interactions, adverse effects, as well as their risks of dependence and misuse. It also briefly discusses complementary and alternative pharmacotherapies such as melatonin and cannabidiol. The chapter includes an in-depth discussion of the clinical use of these medications for anxiety and insomnia. It also discusses the use of anxiolytics in women of childbearing age, notably for pregnancy and breastfeeding considerations. Finally, the chapter includes a table of commonly used anti-anxiety medicines and hypnotics that includes each medicine’s generic and brand names, usual adult doses, pertinent clinical comments, black box warnings and Food and Drug Administration indications.