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The tables below contain a sample list of benzodiazepines and benzodiazepine analogs that are commonly prescribed, with their basic pharmacological characteristics, such as half-life and equivalent doses to other benzodiazepines, also listed, along with their trade names and primary uses.
It has a mean elimination half life of about 3.4 hours. [4] [2] [3] Etizolam possesses potent hypnotic properties, [23] and is comparable with other short-acting benzodiazepines. [4] Etizolam acts as a positive allosteric modulator of the GABA A receptor by agonizing the receptor's benzodiazepine site. [24]
Desmethyldiazepam has a half-life of 36–200 hours, and flurazepam, with the main active metabolite of desalkylflurazepam, with a half-life of 40–250 hours. These long-acting metabolites are partial agonists. [6] [145] Short-acting compounds have a median half-life of 1–12 hours.
An equianalgesic chart can be a useful tool, but the user must take care to correct for all relevant variables such as route of administration, cross tolerance, half-life and the bioavailability of a drug. [5] For example, the narcotic levorphanol is 4–8 times stronger than morphine, but also has a much longer half-life. Simply switching the ...
Prazepam is a benzodiazepine derivative drug developed by Warner-Lambert in the 1960s. [2] It possesses anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. [3] Prazepam, (Elimination half-life 29-224h), is a prodrug for desmethyldiazepam, (Elimination half-life 36-200h), which is responsible for the therapeutic effects ...
Flurazepam [2] (marketed under the brand names Dalmane and Dalmadorm) is a drug which is a benzodiazepine derivative. It possesses anxiolytic, anticonvulsant, hypnotic, sedative and skeletal muscle relaxant properties. It produces a metabolite with a long half-life, which may stay in the bloodstream for days. [3]
The half-life of chlordiazepoxide is from 5 to 30 hours but has an active benzodiazepine metabolite, nordiazepam, which has a half-life of 36 to 200 hours. [31] The half-life of chlordiazepoxide increases significantly in the elderly, which may result in prolonged action as well as accumulation of the drug during repeated administration.
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]