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pirotte Pharm
intro to psych/ pharm of sed-hyps
63
Other
Not Applicable
09/08/2005

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Cards

Term
axis I of DSM
Definition
psych disorder
Term
axis II of DSM
Definition
personality/mental retardation
Term
axis III of DSM
Definition
gen med
Term
axis IV of DSM
Definition
PS/environment
Term
axis V of DSM
Definition
GAF
Term
def of sedative
Definition
reduces anxiety w/o effecting motor/mental fxn
Term
def of hypnotic
Definition
produces drowsiness and encourages onset and maint of sleep
Term
general fxn of sedative-hypnotics
Definition
facilitate GABA transmission at GABAaR
Term
GABAa iono/metabotrope?
Definition
iono
Term
prototypical GABAaR agonist
Definition
musimol (GABA site)
Term
prototypical GABAaR antagonist
Definition
bicuculline (GABA site)
Term
GABAbR iono/metabotrope?
Definition
metabo G protein linked
Term
two locations of GABAbR
Definition
1. presyn terminals controlling release of NTs via dec in Ca conductance 2. postsyn allowing K conductance
Term
action of baclofen?
Definition
GABAb agonist
Term
GABA receptor affected by benzos/barbs
Definition
A
Term
GABAaR = ?mer?
Definition
penta
Term
how many TM domains in each GABAaR subunit?
Definition
4
Term
where are the amino/carboxy termini of each subunit of the GABAaR?
Definition
excell
Term
most common form of GABAaR?
Definition
2a1, 2b2, 1g2
Term
what subunits does benzo binding on the GABAaR depend mostly on?
Definition
type of alpha unit coupled to the g2
Term
on what subunits does GABA bind to the GABAaR?
Definition
a/b
Term
where do benzos bind to the GABAaR?
Definition
BZ1, BZ2
Term
do benzos compete w/ GABA on the GABAaR?
Definition
no
Term
where do imidazopyridines bind to the GABAaR?
Definition
BZ1
Term
what are the imidazopyridines?
Definition
zolpidem, zaleplon
Term
action of zolpidem, zaleplon?
Definition
BZ1 GABAaR agonists
Term
classic BZ GABAaR antagonist?
Definition
flumazenil
Term
what two classes of drugs does flumazenil antagonize?
Definition
benzos, imidazopyrs
Term
what three classes of drugs does flumazenil not antagonize?
Definition
barbs, meprobamate, EtOH
Term
half like of flumazenil IV?
Definition
.7-1.3h
Term
clearance of flumazenial?
Definition
liver
Term
inverse agonists of the GABAaR?
Definition
beta carbolines
Term
do barbs bind to the BZ on the GABAaR?
Definition
nope
Term
action of barbs?
Definition
increase duration of Cl channel opening in presence of GABA
Term
action of hi-dose barbs?
Definition
direct opening of Cl channel
Term
what neurosteroid can potentiate GABA by acting on GABAaR?
Definition
alphaxalone
Term
action of alphaxalone?
Definition
neurosteroid, potentiates GABA by acting on GABAaR
Term
effect of EtOH on GABAaR?
Definition
appears to act somewhat like a benzo
Term
solubility of benzos
Definition
lipid
Term
bioavailability of benzos?
Definition
60-100
Term
protein binding of benzos?
Definition
70-99
Term
what does benzo binding to GABAaR do?
Definition
inc affinity of GABAa for its binding site, inc freq of opening of Cl channels
Term
use of benzos in pregnancy?
Definition
cross placenta, may be teratogenic
Term
phase I cyps of benzos?
Definition
3A4, 2C19
Term
benzos that undergo both I and II metabolism
Definition
diaz, fluraz, clonaz, flunitraz, midazo, apraz, triaz
Term
which two benzos have active metabolites w/ a long HL?
Definition
diaz/fluraz
Term
what happens when midazo, alprazo, and triazo are oxidized?
Definition
they are rapdily eliminated
Term
benzos that undergo only II metabolism
Definition
oxaz, loraz, temaz (OLT)
Term
do oxaz, loraz, temaz have an active metabolite?
Definition
negaitve
Term
frequent SE of benzos?
Definition
drowsiness, ataxia, amnesia
Term
what symptoms are possible when pts over the age of 50 are given high doses of triazolam?
Definition
confusion, excitement, rage
Term
mech of barbs
Definition
bind to GABAaR distinct from BZ sites, inc duration of Cl opening, depress action of excitatory NTs
Term
are barbs specific to the GABAaR?
Definition
no
Term
why do barbs not have a "ceiling effect" on their potential for CNS depression?
Definition
they can be GABAmimetic at hi-dose
Term
action of picrotoxin?
Definition
blocks Cl-channels
Term
short acting barbs?
Definition
thiopental, mexihexital
Term
intermediate acting barbs?
Definition
amobarbital, secobarbital, pentobarbital
Term
long acting barbs?
Definition
phenobarbital
Term
adverse effects of barbs...
Definition
low TI, dependence, stimulate of CYP450 and microsomal oxidases, tolerance, anesthesia
Term
clinical uses of phenobarbital
Definition
epilepsy
Term
clinical uses of thiopental and methohexital
Definition
anesthesia
Term
action of meprobamate
Definition
resembles a benzo
Term
action of chloral hydrate
Definition
metabolized to trichloroethanol, 6-10hr hl
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