Medical literature on the non-benzodiazepines (Ambien, Lunesta, Sonata, and Rozerem) and OSA:
amos wrote:...you will experience even longer and stronger apneas...
http://findarticles.com/p/articles/mi_h ... _n29448018 is a quick review of the literature on this subject, and
http://www.medscape.com/medline/abstract/16944674 addresses this with Ambien directly.
There was one 20 year old study cited in the first link that raised the possibility that AHI and desat might be increased under the influence of Ambien if you were snoring, but it wasn't a large enough delta versus placebo to be considered statistically significant. That's been the only study that showed this even as a remote possibility, and it's worth noting that the participants were given 20 mgs, or 2x the current FDA approved dosage. The more recent study showed no evidence of increased AHI or desats.
Studies of the other non-benzos at prescribed dosages have not shown any difference in AHI or desats.
Rooster wrote:Ambien wrecks normal sleep architecture by reducing the amount of REM sleep.
There's been one study on humans -
http://www.mdconsult.com/das/citation/b ... html?issn= - that suggests that a higher-than-recommended dosage of 15 mg of Ambien decreases REM sleep after a long period of consecutive usage (14+ days.) It's important to note that on the FDA approved dosage of 10 mg, this effect didn't show up, nor did it show up under normal usage (3-5 days).
There have been a couple studies on rats -
http://cat.inist.fr/?aModele=afficheN&cpsidt=15718621 and
http://www.sciencedirect.com/science?_o ... f2fadc8153 - that suggested Ambien decreased REM sleep but increased slow wave sleep (deep sleep). No information on dosages, and I have been told by my sleep doctor (who still does active clinical research) that she doesn't bother reading the rat sleep studies anymore since they've not translated well to humans.
There was also one on guinea pigs comparing Lunesta and Ambien that showed Ambien at normal to high doses didn't do much of anything, where Lunesta at high to very high doses did increase both SWS and latency to REM -
http://www.websciences.org/cftemplate/N ... D=20082311.
The rest of the literature suggests that about the only truly consistent finding for Ambien is that it doesn't do much to sleep architecture besides decreasing sleep latency and improving sleep efficiency. Someone was nice enough to put out a bunch of abstracts of numerous studies here:
http://patrifriedman.com/writing/journa ... pidem.html, and someone else pointed out some older studies here
http://www.sleepnet.com/tech7/messages/1015.html that pretty much agree on that.
Mindy wrote:I always skipped the ambien on Friday and Saturday nights (no work the next day) to avoid the potentially bad rebound effects if I tried to stop
Probably a wise thing. There have been two studies on Lunesta that suggest it's safe for continuous use over 6 months, but they're sponsored by the manufacturer. (Thanks, I'll pass.)
The one on Ambien -
http://www.mdconsult.com/das/citation/b ... html?issn= - confirmed my own experience. If you take it for a few days, you're fine. More than that, you'll get rebound insomnia.
And to summarize all this, I found a post by a guy who does have an MD, practices sleep medicine, and who apparently has read the studies beyond those the reps have given him:
http://sleepdoctor.blogspot.com/2005/12/ambien.html
Cheers.