Depressants are drugs that slow down the central nervous system, causing physical and psychological relaxation. Common depressants include alcohol, benzodiazepines, and barbiturates. These drugs are often referred to using several different names, including sedatives, tranquilizers, anxiolytics, downers, and relaxants. The effects of depressants can vary depending on the specific drug used and the dosage. While they are often prescribed to treat conditions such as anxiety and insomnia, depressants can have harmful side effects when used improperly. These include respiratory depression, impaired judgment, and addiction. It is important for individuals to use caution when taking depressant medications and to only do so as directed by a healthcare professional.