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Quazepam, sold under the brand name Doral among others, is a relatively long-acting benzodiazepine derivative drug developed by the Schering Corporation in the 1970s. [2] Quazepam is used for the treatment of insomnia , including sleep induction and sleep maintenance. [ 3 ]
Flurazepam is a "classical" benzodiazepine; some other classical benzodiazepines include diazepam, clonazepam, oxazepam, lorazepam, nitrazepam, bromazepam, and clorazepate. [15] Flurazepam generates an active metabolite, N-desalkylflurazepam, with a very long elimination half-life. [3]
Withdrawal symptoms can sometimes resemble pre-existing conditions and be misdiagnosed. Diazepam may produce less intense withdrawal symptoms due to its long elimination half-life. [46] Benzodiazepine treatment is recommended to be discontinued as soon as possible by a slow and gradual dose reduction regimen.
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.
Chlordiazepoxide is generally considered an inappropriate benzodiazepine for the elderly due to its long elimination half-life and the risks of accumulation. [10] Benzodiazepines require special precaution if used in the elderly, pregnancy, children, alcohol- or drug-dependent individuals and individuals with comorbid psychiatric disorders. [11]
Like diazepam it has a long elimination half-life and long-acting active metabolites. Discontinuation of benzodiazepines or abrupt reduction of the dose, even after a relatively short course of treatment (two to four weeks), may result in two groups of symptoms, rebound and withdrawal. Rebound symptoms are the return of the symptoms for which ...
Symptoms are most likely to occur when you stop taking an antidepressant cold turkey (which, by the way, isn’t advised)—or in cases where you’re in the process of tapering off.
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.