Pharmacology of Anxiolytic Drugs Flashcards
benzodiazepines should be used in anxiety for less than _ weeks
2 weeks
what symptoms are present in both anxiety and depression?
concentration
fatigue
sleep
arousal
if you have 1 anxiety disorder you’re more likely to get another T or F
T
what does the amygdala do?
integrates sensory and cognitive info
an increase in cortisol is carried out by what structure?
hypothalamus
what part of the brain is responsible for the autonomic symptoms in anxiety?
locus coeruleus
which part of the brain is responsible for reexperiencing/traumatic memories?
hippocampus
effect of GABA on the amygdala and CSTC circuits?
reduces activity of neurons there
main GABA receptor in anxiety?
GABA-A
benzodiazepines have what effect on GABA-A receptors in terms of their binding?
positive allosteric modulator (GABA binds to one site, benzo binds to other side)
benzodiazepines __ neuron firing rate after binding to GABA-A
decrease
valium is another name for…
diazepam
pharm effects of benzos?
reduce anxiety and aggression hypnosis sedation muscle relaxation anti-convulsant effect anterograde amnesia
clinical uses of benzos?
acute Tx of extreme anxiety hypnosis alcohol withdrawal mania delirium status epilepticus acute tranquilisation
antagonist for benzos?
flumazenil
problems with benzos?
impaired coordination
tolerance
symptoms of benzo withdrawal
abdo cramps increased anxiety/panic attacks autonomics blurred vision low mood poor concentration tingling in hands and feet restlessness
rapid withdrawal of benzodiazepines can cause what symptoms?
confusion psychosis convulsions tachycardia sweating tremor HT
presentation of acute benzo withdrawal can mimic what condition?
delirium tremens
how to withdraw benzos?
take daily dose of diazepam at night
reduce dose every 2-3 weeks by 2mg
reduce further
stop completely
how long should you decrease the dose of benzos before stopping
4 weeks to a year
how long does it take for serotonin levels to increase after taking an SSRI?
hours
1st and 2nd line medication for panic disorder
- SSRI
2. tricyclics
what SSRIs are good for GAD?
escitalopram
paroxetine