The benzodiazepines (pronounced 1, often abbreviated to "benzos") are a class of psychoactive drugs with varying hypnotic, sedative, anxiolytic, anticonvulsant, muscle relaxant and amnesic properties, which are mediated by slowing down the central nervous system. Benzodiazepines are useful in treating anxiety, insomnia, agitation, seizures, and muscle spasms, as well as alcohol withdrawal. They can also be used before certain medical procedures such as endoscopies or dental work where tension and anxiety are present, and prior to some unpleasant medical procedures in order to induce sedation and amnesia for the procedure. Another use is to counteract anxiety-related symptoms upon initial use of SSRIs and other antidepressants, or as an adjunctive treatment. Recreational stimulant users often use benzodiazepines as a means of "coming down". Benzodiazepines are also used to treat the panic that can be caused by hallucinogen intoxication.
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The benzodiazepines (pronounced 1, often abbreviated to "benzos") are a class of psychoactive drugs with varying hypnotic, sedative, anxiolytic, anticonvulsant, muscle relaxant and amnesic properties, which are mediated by slowing down the central nervous system. Benzodiazepines are useful in treating anxiety, insomnia, agitation, seizures, and muscle spasms, as well as alcohol withdrawal. They can also be used before certain medical procedures such as endoscopies or dental work where tension and anxiety are present, and prior to some unpleasant medical procedures in order to induce sedation and amnesia for the procedure. Another use is to counteract anxiety-related symptoms upon initial use of SSRIs and other antidepressants, or as an adjunctive treatment. Recreational stimulant users often use benzodiazepines as a means of "coming down". Benzodiazepines are also used to treat the panic that can be caused by hallucinogen intoxication.
The long-term use of benzodiazapines can cause physical dependence. The use of benzodiazepines should therefore commence only after medical consultation and benzodiazepines should be prescribed the smallest dosage possible to provide an acceptable level of symptom relief. Dependence varies with the benzodiazepine used and with the user.
History
The original chemical name of chlordiazepoxide was methaminodiazepoxide but it was changed to chlordiazepoxide. It was marketed under the trade name Librium, derived from the final syllables of equilibrium. In 1959 it was used by over 2,000 physicians and more than 20,000 patients. It was described as "chemically and clinically different from any of the tranquilizers, psychic energizers or other psychotherapeutic drugs now available." During studies, chlordiazepoxide induced muscle relaxation and a quieting effect on laboratory animals like mice, rats, cats, and dogs. Fear and aggression were eliminated in much smaller doses than those necessary to produce hypnosis. Chlordiazepoxide is similar to phenobarbital in its anticonvulsant properties. However, it lacks the hypnotic effects of barbiturates. Animal tests were conducted in the Boston Zoo and the San Diego Zoo. Forty-two hospital patients admitted for acute and chronic alcoholism, and various psychoses and neuroses were treated with chlordiazepoxide. In a majority of the patients, anxiety, tension, and motor excitement were "effectively reduced." The most positive results were observed among alcoholic patients. It was reported that ulcers and dermatologic problems, both of which involve emotional factors, were reduced by chlordiazepoxide.
