benzodiazepine

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benzodiazepine

(bĕn'zōdīăz`əpēn'), any of a class of drugs prescribed for their tranquilizing, antianxiety, sedative, and muscle-relaxing effects. Benzodiazepines are also prescribed for epilepsy and alcohol withdrawal. Introduced in the early 1960s with chlordiazepoxide (Librium), benzodiazepines were heralded as a safer alternative to barbituratesbarbiturate
, any one of a group of drugs that act as depressants on the central nervous system. High doses depress both nerve and muscle activity and inhibit oxygen consumption in the tissues. In low doses barbiturates act as sedatives, i.e.
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 and meprobamate because they were relatively non–habit forming and were less lethal in overdose.

There has been considerable debate over their side effects, addictiveness, and abuse, beginning with negative media attention given to diazepam (Valium) in the late 1960s and continuing with debate over triazolam (Halcion), which culminated in its withdrawal from the market in Britain and several other countries. All benzodiazepines appear to have amnesic side effects. Triazolam has been associated with depression, increased daytime anxiety in poor sleepers, and some cases of psychosis. Physical dependence on benzodiazepines is seen predominantly in patients who have taken the medications over long periods. Upon withdrawal the original symptoms often recur, and patients may experience anxiety, insomnia, perceptual changes, hallucinations, and seizures. These symptoms can be lessened by slowly tapering off the dose.

Abuse of benzodiazepines occurs most often in young white males who also abuse other substances. In this group benzodiazepines, especially diazepam and alprazolam (Xanax), are used, sometimes nasally, to ameliorate the unwanted effects of street drugs, such as cocaine. Flunitrazepam (Rohypnol), a prescription benzodiazepine sedative not approved in the United States, is increasingly being abused by teen-agers in some areas of the country. While many doctors feel benzodiazepines are safe and effective, especially for short-term relief of anxiety and insomnia, others feel that they mask underlying problems and invite dependence. There are 12 benzodiazepines now on the market, including clonazepam (Clonopin) and temazepam (Restoril).

See also antianxiety drugantianxiety drug,
drug administered for the relief of anxiety. Although their action is not fully understood, most antianxiety medications appear to affect the action of neurotransmitters in the brain (see serotonin and norepinephrine).
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.

benzodiazepine

[‚ben·zō‚dī′az·ə‚pēn]
(medicine)
A group of tranquilizers that are used to combat anxiety and convulsions.
References in periodicals archive ?
0ng/ml Cannabinoids ELISA 100pg/ml Benzodiazapines ELISA 2.
A study of physicians found that almost 8 percent of respondents self-reported AOD abuse during some period of their lives and that physicians were more likely to use alcohol, benzodiazapines, and minor opiates than the general population (Hughes et al.
Anti-anxiety agents such as buspirone (Buspar) and benzodiazapines (Valium, Klonapin, Ativan and Xanax, for example) have been studied little in autism.
Benzodiazapines, or tranquilizers, include Valium, Xanax, and Clonipin.
Would you clarify this situation as I feel it is important that users of benzodiazapines are aware of the correct usage of these drugs.