About The Narcoleptic Brain...
Posted 07 April 2010 - 09:10 PM
Is the narcoleptic brain more susceptible to side effects of various medications? I know it's not good for narcoleptics to drink alcohal. Does this apply to other narcotic medications? When I have to take prescriptions (other than Adderoll for narc) I seem to always get the side effects like depression and mood swings. :(Seems like most drugs, especially downers, really mess with me. I just want to understand how the condition interacts with the brain.
Posted 08 April 2010 - 12:23 AM
PRAZOSIN AND OTHER ALPHA 1 ANTAGONISTS: This has been confirmed in animal models and human studies.
Certain dopamine agonists like Requip (ropinerole) or pramipaxole can cause symptoms like narcolepsy in those without narcolepsy too. These are approved to treat Parkinson's and restless leg syndrome but used for many other diseases like migraines or neuropathic pain. Personal experience says you sleep like a baby if you take them at bed, but they cause sleep attacks during the day.
For a more esoteric view (or if you just want to be confused) I have listed some relevant information bellow.
Narcolepsy is, in theory a disregulation of REM sleep.
But, studies show a lack of dopamine, serotonin and norephinephrine (alpha pathway is activated by this) in the brain among other issues (it's a long list) that is seen in narcolpesy.
This near systemic lack may manifest itself as excess REM sleep (norepi decreases REM sleep so this holds some merit).
But several studies done have shown that the potency of anti-narcoleptic drugs are due to increased dopaminergic pathway activation.
Other studies say that the alpha pathway is what allows provigil to promote wakefullness...
Isn't this confusing? I'm confused and I'm half a doctor (half way through med school) and have spent hours looking at this stuff. This also doesn't even begin to look at the role orexin (a master control neurotransmitter) plays in narcolepsy.
One would assume that as Narcoleptics are generally tired anyone with narcolepsy should avoid like the plague any drugs that cause sedation. This is the same principal that is applied to treat those with Idiopathic Hypersomnia/Primary hypersomnia. Yet, sleep docs often prescribe SSRIs/other antidepressants that are sedative (Effexor for one)/benzodiazepines etc to help with the symptoms of narcolepsy. Patients take them, some get good results... others don't.
Posted 08 April 2010 - 01:08 PM
Posted 08 April 2010 - 02:36 PM
Posted 08 April 2010 - 04:59 PM
Wellbutrin is best thought of as a mild stimulant. Effexor is considered one of the more sedating newer antidepressants. All antidepressants can suppress REM sleep and thus invalidate or at least reduce the reliability of MSLTs. Abilify... not sure where to start with this guy... I have no idea what it does to REM sleep. But a lot of doctors have no idea if it even works as an adjunct to anti-depressants in severe depression despite it being approved for that. I know a person that was on a similar drug for about a week before his internist took him off. He said it was like he was in a chronic fog and very sedated so for Abilify that's the best I can do.
Adderall acts increases levels of dopamine and norephinephrine released in the brain. As mentioned before this is the reason it improved measures of wakefulness in narcoleptic patients. It is used off label to treat increase learning post stroke, encephalitis, fatigue, etc. The military calls a similar drug "go pills" for a reason.