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Long-acting benzodiazepines with long-acting active metabolites, such as diazepam and chlordiazepoxide, are often prescribed for benzodiazepine or alcohol withdrawal as well as for anxiety if constant dose levels are required throughout the day. Shorter-acting benzodiazepines are often preferred for insomnia due to their lesser hangover effect.
Flurazepam is a long-acting benzodiazepine and is sometimes used in patients who have difficulty in maintaining sleep, though benzodiazepines with intermediate half-lives such as loprazolam, lormetazepam, and temazepam are also indicated for patients with difficulty maintaining sleep.
Rebound insomnia, however, is more common upon discontinuation of intermediate-acting benzodiazepines than longer-acting benzodiazepines. Examples are alprazolam, estazolam, flunitrazepam, clonazepam, lormetazepam, lorazepam, nitrazepam, and temazepam. Long-acting compounds have a half-life of 40–250 hours.
[69] [70] It is a 1,4 benzodiazepine, with the chemical name 1,3-Dihydro-7-nitro-5-phenyl-2H-1,4- benzodiazepin-2-one. It is long acting, lipophilic, and metabolised hepatically by oxidative pathways. It acts on benzodiazepine receptors in the brain which are associated with the GABA receptors, causing an enhanced binding of GABA to GABA A ...
Clorazepate is a long-acting benzodiazepine drug. [10] Clorazepate produces the active metabolite desmethyl-diazepam , which is a partial agonist of the GABA A receptor and has a half life of 20–179 hours; a small amount of desmethyldiazepam is further metabolised into oxazepam .
Temazepam is a short-acting benzodiazepine and hypnotic. [8] [7] It works by affecting GABA within the brain. [8] Temazepam was patented in 1962 and came into medical use in 1969. [12] It is available as a generic medication. [13] In 2021, it was the 208th most commonly prescribed medication in the United States, with more than 2 million ...
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