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Temazepam, sold under the brand name Restoril among others, is a medication of the benzodiazepine class which is generally used to treat severe or debilitating insomnia. [8] It is taken by mouth. [8] Temazepam is rapidly absorbed, and significant hypnotic and anxiolytic effects begin in less than 30 minutes and can last for up to eight hours.
[20] [127] Symptoms continue to improve over time, often to the point where people eventually resume their normal lives, even after years of incapacity. [25] A slow withdrawal rate significantly reduces the risk of a protracted or severe withdrawal state. Protracted withdrawal symptoms can be punctuated by periods of good days and bad days.
The prosuicidal effects of benzodiazepines are suspected to be due to a psychiatric disturbance caused by side effects or withdrawal symptoms. [11] Because benzodiazepines in general may be associated with increased suicide risk, care should be taken when prescribing, especially to at-risk patients.
Flutemazepam was initially first synthesized in 1965, [1] but was not further described until a team at Stabilimenti Chimici Farmaceutici Riuniti SpA in the mid-1970s. [2] [3] It is a short-acting (9–25 hr elimination half-life) fluorinated analogue of temazepam that has powerful hypnotic, sedative, amnesiac, anxiolytic, anticonvulsant and skeletal muscle relaxant properties.
The duration of diazepam's peak pharmacological effects is 15 minutes to one hour for both routes of administration. [68] The half-life of diazepam, in general, is 30–56 hours. [ 1 ] Peak plasma levels occur between 30 and 90 minutes after oral administration and between 30 and 60 minutes after intramuscular administration; after rectal ...
A short elimination half-life and a rapid onset of action are characteristics which increase the abuse potential of a benzodiazepines. [18] The following table provides the elimination half-life, approximate equivalent doses, speed of onset of action, and duration of behavioural effects. [32] [33]
The research into the safety of benzodiazepines during pregnancy is limited and it is recommended that use of benzodiazepines during pregnancy should be based on whether the benefits outweigh the risks. If chlordiazepoxide is used during pregnancy the risks can be reduced via using the lowest effective dose and for the shortest time possible.
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.