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Edited on Fri Jun-09-06 03:17 AM by varkam
But I know that what you're talking about isn't all that uncommon. Ambien (zolpidem) is a Non-benzodiazepine hypnotic that was approved by the FDA in the early 90's. Before that, the defacto treatment for insomnia was either benzos or barbituates. Anyway, the point is that the NBZDs haven't been around that long, so their side effects haven't had a great deal of time to come out. Here recently though, a lot of media stories have been popping up regarding zolpidem possibly causing various parasomnias (from sleep walking to sleep eating to sleep driving).
When we're asleep, various parts of our brain are active while various other parts are inactive. The inactive parts tend to be the ones responsible for active consciousness and memory encoding. Now the NBZDs interact with the GABA receptors in your brain, which tends to promote drowsiness. From what I've leared, certain people can be hypersensitive to GABA modulation (in other words, drugs like zolpidem seem to affect them a lot). I think that this could translate to certain areas of your brain remaining inactive while you engage in these activities while other areas that would normally be inactive during sleep are active (e.g. your frontal lobe). This is sometimes called the carry-over effect or residual sedation.
The business end of it is this: you might actually be conscious while you're performing these actions, but lack the neural activity at the time in certain brain regions (thanks to zolpidem's effects on GABA) to actually encode the memories of these actions.
If you must having sleeping meds, you might try Sonata (zaleplon) which is another NBZD with a half-life of approximately 1 hour (compared with zolpidems 2.5). That basically means it should clear your system almost entirely by morning. Lunesta (eszopiclone) is another NBZD that has a different sort of interaction with GABA complexes, so that might treat you differently as well. Other alternatives include the older benzodiazepine agents, certain melatonin agonistic agents (whose names elude me right now), or OTC remedies such as Tylenol PM or Benadryl.
Just thought the explanation might be useful.
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