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NonbenzodiazepineThe nonbenzodiazepines are comparatively new drugs whose actions are very similar to those of the benzodiazepines, but are structurally unrelated to the benzodiazepines and are believed to have fewer side effects. Thus far three main structural classes of nonbenzodiazepine drugs have been developed (although note that some other orphan drugs also fall into the nonbenzodiazepine category). The three main groups are: Additional recommended knowledge
However the Z-drugs are not without their disadvantages, and all three compounds are notable for producing side effects such as pronounced amnesia and more rarely hallucinations,[4][5] especially when used in large doses. More rarely these drugs can produce a fugue state where the patient sleepwalks and may perform relatively complex actions, including cooking meals or driving cars, while effectively unconscious and with no recollection of the events upon awakening. While this effect is rare (and has also been reported to occur with some of the older sedative drugs such as temazepam and secobarbital) it can be potentially hazardous and so further development of this class of drugs has continued in an effort to find new compounds with further improved profiles.[6][7][8][9][10] More recently, a range of non-sedating anxiolytic drugs derived from the same structural families as the Z-drugs have been developed, such as alpidem and pagoclone, and are starting to be marketed. These drugs are again much more selective than the older benzodiazepine anxiolytics, producing effective relief of anxiety symptoms but with little or no sedative or amnestic side effects, and so offer considerable advantages over the older anxiolytic drugs, however they are still new to the market and have not yet been widely prescribed.
References
Categories: Cyclopyrrolones | Imidazopyridines | Pyrazolopyrimidines |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Nonbenzodiazepine". A list of authors is available in Wikipedia. |