sedative hypnotics, anti-anxieties, muscle relaxers Flashcards
What is a state oaf anesthesia?
A state of unconsciousness without possibility of arousal
T/F sedation causes relaxation, calmness, and decreased motor activity with loss of consciousness?
False! It does those things withOUT loss of consciousness
The two major classes of sedative-hypnotic and anti-anxiety are what?
Barbiturates
and
Benzodiazepines
The GABA-A receptor is a pentamer. T/F- The barbiturates and benzodiazepines work at this receptor?
True, but they bind at different sites on the receptors- allosteric modification
GABA-A and GABA-B receptors exist. What its the difference between them?
Does GABA work for both receptors? What is the end result for both?
GABA-A is a ligand gated ion channel whereas the GABA-B is a G protein coupled receptor.
And GABA activates both receptors
Hyper polarization results
What do barbiturates do to the Cl- channel opening?
Barbiturates increase the duration of GABA-mediated channel opening
What do benzodiazepines do to the Cl- channel opening?
They increase the frequency of GABA-mediated channel opening
Do barbiturates and benzodiazepines have the same end result?
Yep
T/F the heterogeneity of the GABA-A receptors contributes to the clinical differences observed between barbiturates and benzodiazepines?
True
Why are benzodiazepines better for anti-anxiety than barbiturates?
Barbiturates are more toxic and they knock out everything instead of benzodiazepines that don’t knock out everything
T/F respiratory depression by benzodiazepines is not a problem by itself?
True. You won’t die due to asphyxiation when you take benzodiazepines.
T/F pharmacodynamic behavior is more important than the difference in profile activity?
False, this statement is true of pharmacokinetics
T/F benzodiazepines are less likely to be abused or cause a dependency?
True
is ambien good for muscle relaxation or seizure prevention?
nope, just for helping you go to sleep
Clinical effects of barbiturates- it is a dose dependent suppression of what?
The CNS- known as “downers” just like our last fixed test