EPS / TD / NMS Risk with Novel / Atypical Antipsychotics
You'll see reference to
Extrapyramidal Symptoms, or EPS. They include TD (see below) and
a bunch of other fancy medical terms for various uncontrolled movements. EPS can be weird
hand movements, like you're signing in Esperanto. It can mean you've become the uberklutz,
tripping not only over your own feet but over your own knees. It can mean tremors and
twitches and tics and tap dancing. EPS can be temporary, my weird hand-jive and extra
klutziness (on top of my natural klutziness) went away after a few weeks. Or EPS can last
as long as you take the novel / atypical antipsychotic. The best evidence around, from clinical
studies to the stories of people who take these drugs, is that once you stop taking the
med, or lower the dosage below the point at which it shows up, the problem goes away.
Or you can treat it with an anti-Parkinson's drug.
You have options!
While more likely to happen with the standard antipsychotics, and to last longer with
them, EPS still happens with the atypicals. I should know! But
lowering the dosage took care of my EPS issues. To what extent you're will to
put up with EPS and for how long is between you, your doctor and what symptoms you're
trying to manage with the med in question. Still, my experience pretty much
matches that of others I've read. You freak, you talk to your
doctor, you switch meds, the symptoms go away. Basic Information About Atypical Antipsychotics
Common Side Effects
Long-Term Issues
Taking Atypical Antipsychotics
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So far
Seroquel (quetiapine) and
Zyprexa (olanzapine) have tested to be
the least likely of the popular atypicals (i.e. not Clozaril
(clozapine)) to cause EPS. Anecdotal evidence is suggesting
that Risperdal
(risperidone) is the one most likely to cause EPS. This includes TD.
Case in point - my experience with TD. It came on suddenly. One
day Mouse noticed that my tongue seemed to be sticking out of my mouth more
when I spoke certain words and that I had some minor facial tics that I
wasn't aware of. The next day my tongue had a mind of its own, I was
totally aware of facial tics without having to look in a mirror, and I was
blinking like a cartoon owl broadcasting Morse code. Lowering my dosage of Risperdal
(risperidone) from 0.5mg a night to 0.25mg reduced the symptoms, but they
still flared up now and then. Eventually I had to stop taking a very
effective med. The TD was gone for the most part. I still had a
bit of a tic in my forehead, but I'm a really poor metabolizer of meds, so
maybe the Risperdal
(risperidone) was hanging around for a long time, given the 30 hour
half-life of the active metabolite for poor metabolizers. Plus tics are side effects of other meds I take,
and once you get a side effect going like that, it'll just hang around if
the other meds will make it easier to do so. But it really never went
away until I took
Seroquel (quetiapine), which along with
Zyprexa (olanzapine) has been used to
treat the permanent form of TD that is more likely from taking
standard antipsychotics. So, really slow metabolism of Risperdal
(risperidone) or permanent, if intermittent presentation of one minor TD
symptom that didn't bother me all that much that required another
med to deal with? I honestly don't know.
Did it freak me out? Of course it did! For about an hour.
I knew what was going on, I knew how to deal with it. Fortunately I
have the luxury of knowing how meds work and not having to leave my house
for days at a time. So if something like this happens to you, go ahead
and freak out! It's scary! And Christ on a crutch, to go out in
public when that's happening to you on top of everything else you're dealing
with? It's one thing when you're used to dealing with that sort of
thing most of your life, but it's something else entirely when it's a brand
new event in your life. While I personally don't give a shit about
tics and blinking and my tongue going wacky on me when I'm trying to buy
groceries, I'm not the rest of the world.
Early symptoms
include fever, rigidity and increased heartbeat. Unlike TD, NMS requires
a lot of
intervention in addition to cessation of the medication. More than you ever wanted to know
about it at http://www.nmsis.org/general_information.shtml.
Unlike EPS, the chances for NMS, exceedingly rare as they are (I
mean, fewer than 100 cases total for all the atypicals) seem evenly
spread across the board.
Crazy Meds Home Crazy Meds Talk About Antidepressants About SSRIs About Anticonvulsants / Mood Stabilizers About Atypical Antipsychotics About Benzodiazepines About Stimulants Finding a Doctor Sites with More Information Support Group Sites About Crazy Meds Crazy Meds: The Blog
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Hey, did you find this page all by itself through Google or some other search engine? Great! But to really appreciate the entire site, you need to start here.
Dead tree references:
Essential Psychopharmacology Stephen M. Stahl, M.D., Ph. D. © 2000. Published by Cambridge University Press
A Primer of Drug Action Robert M. Julien, M.D., Ph. D. © 2001. We use the Ninth Edition. Sometimes that comes up on an Amazon search, usually it doesn't. Published by Worth Publishers
Physicians' Desk Reference Editions 53 & 56 Maria Deutsch & Anu Gupta, Drug Information Specialists, et al. © 1999, 2002. Published by Medical Economics Company.
The Complete Guide to Psychiatric Drugs Edward Drummond, M.D. © 2000. Published by John Wiley & Sons, Inc.
End of books used for this article.
Created Thursday, October 07, 2004
Last updated Saturday, May 15, 2010
Copyright © 2003 - 2010 Jerod Poore All rights reserved.
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