Anxiety Disorders Flashcards
two basic componenents of anxiety
Mental and Physical features
define anxiety
uncomfortable feeling of vague fear or apprehension accompanied by physical sensations
anxiety disorders differ from anxiety how
more intense and last for longer
development of avoidance, ritual acts, or repetitive thoughts to protect
length of time for symptoms to be diagnosed with generalized anxiety disorder
6 months
to be diagnosed with anxiety disorder a person must have 3+ of the following
restlessness or keyed up or on edge easily fatigued difficulty concentrating or mind going blank irritability muscle tension sleep disturbances
benzodiazepines for generalized anxiety disorder
alprazolam chlordiazepoxide clonazepam clorazepate diazepam lorazepam midazolam oxazepam
brand name of alprazolam
xanax
chlordiazepoxide brand name
librium
clonazepam brand name
klonopin
clorazepate brand name
tranxene
diazepam brand name
valium
lorazepam brand name
ativan
midazolam brand name
versed
oxazepam brand name
serax
which benzos are most commonly seen in GAD
alprazolam
clonazepam
diazepam
lorazepam
alprazolam onset
intermediate
alprazolam distribution half life
intermediate
alprazolam elimination half life
6-20 hours
alprazolam oral dosage equivalency
1 mg
clonazepam oral dosage equivalency
0.5 mg
clonazepam onset
intermediate
clonazepam distribution half life
intermediate
clonazepam elimination half life
18-50 hours
diazepam oral dose equivalency
10 mg
diazepam onset
rapid
diazepam distribution half life
rapid
diazepam elimination half life
30-100 hours
lorazepam dosage equivalency
2 mg
lorazepam onset
intermediate
lorazepam distribution half life
intermediate
lorazepam elimination half life
10-20 hours
oxazepam dosage equivalency
30 mg
oxazepam onset
slow
oxazepam distribution half life
intermediate
oxazepam elimination half life
8-12 hours
oral and sublingual BZDs achieve peak plasma levels when
1-3 hours
which 3 BZDs are compounded for oral or sublingual use
lorazepam
alprazolam
triazolam
which BZDs are available in injectable forms
chlordiazepoxide
diazepam
lorazepam
midazolam
Which injectable BZD is most commonly used in pre-op
midazolam
Which 2 injectable BZDs are most commonly seen
lorazepam
midazolam
which 2 BZDs should have IM injection avoided
diazepam
chlordiazepoxide
When are IM injections of BZDs seen
psychomotor agitations
when are IV injections of BZDs seen
seizures and pre-op sedation
psych with acute dystonic reaction
which site of IM injection has better absorption
deltoid
onset of effect depends on what properties of BZDs
lipophilicity
high -> rapidly absorbed effect in 30-60 minutes
Which BZDs are highly lipophilic
diazepam
clorazepate
which BZDs are less lipophilic
diazepam
lorazepam
oxazepam
duration of effect after a single dose depends on what factor
distribution half life
duration of effect after multiple doses depends on what factor
elimination half life
Which drug is the IM DOC in psychiatry
lorazepam
which BZDs have active metabolites of little importance
alprazolam
triazolam
midazolam
which BZDs have no active metabolites
lorazepam
oxazepam
temazepam
which BZDs are choice in elderly and liver disease
no active metabolites
lorazepam
oxazepam
temazepam
drug interactions with BZDs
alcohol
clozapine
BZD interaction with alcohol
decreased clearance of chlordiazepoxide and diazepam
additive psychomotor inpaitment
management of alcohol drug interaction with BZDs
avoid
management of drug interaction between BZDs and clozapine
Avoid if possible
drug interaction between clozapine and BZDs
respiratory suppression
Common AEs of BZDs
CNS depression fatigue sedation psychomotor impairment dizziness weakness
BZDs effect on memory
anterograde amnesia
BZDs with the worst effects on amnesia
lorazepam
triazolam
midazolam
who is more likely to experience behavioral effects with BZDs
children
brain injuries
elderly
what behavioral effects are seen with BZDs
disinhibition
increased agitation
increased aggression
BZD pregnancy category
D
Possible outcomes of abrupt BZD d/c
Rebound
Relapse
Withdrawal
rebound definition
anxiety above pretreatment levels for a few days
relapse definition
anxiety back to pretreatment levels
common symptoms of BZD withdrawal
restlessness insomnia decreased concentration nausea decreased appetite heart palpitations weakness increased acuity to sound, smell, touch, pain, irritability
symptom of extreme cases of BZD withdrawal
seizures
factors that increase the likelihood of BZD dependence
high potency BZDs
use 6+ months
high dose use
how much should BZD dose be reduced per week
10-25% of total daily dose
Advantages of BZDs
work immediately
take PRN
cheap
no sexual dysfunction
disadvantages of using BZDs
risk of abuse and dependence
buspirone brand name
Buspar
buspar active metabolite
yes 1
buspirone elimination half life
2.6 hours
buspirone dose
5 mg TID or 7.5 mg BID ->
10 mg TID or 15 mg BID
buspirone dosage range
20-60 mg / day in divided doses
buspirone pregnancy cat
D
Common AEs of buspirone
dizziness
lightheadedness
nausea
HA
buspirone drug interactions
azole antifungals clarithromycin nefazodone erythromycin MAOI
buspirone interaction with azole antifungals and management
increased buspar levels
decrease dose of buspar to 2.5 mg QD
buspirone interaction with clarithromycin and management
increased buspirone levels
decrease buspar to 2.5 mgQD
buspirone interaction with Nefazodone and management
increased buspar levels
decrease dose to 2.5 mg QD
buspirone interaction with erythromycin and managment
increased buspar levels
decrease dose of buspar to 2.5 mg QD
buspirone interaction with MAOI and management
serotonin syndrome
contraindicated
advantages of buspirone
equally as effective as BZDs no cognitive/psychomotor impairment no interaction with CNS depressants No withdrawal Preg Cat B
buspirone preg cat
B
disadvantages of buspirone
several weeks to work
Not PRN
Not effective for panic disorders
Pt will prefer BZD if already had a BZD
SNRIs used for anxiety
Venlafaxine XR
duloxetine
venlafaxine XR dose for GAD
37.5 mg QD x 1 week
75 mg QD x 1 week
150-225 mg QD
duloxetine dose for GAD
60 mg QD
Advantages of SNRIs
no potential for dependence
ER form is well tolerated
Few drug-drug interactions
No dose reduction in the elderly
disadvantages of SNRIs
delayed onset - 4 weeks
Not PRN
discontinuation syndrome if not tapered
sexual dysfunction
SSRIs approved for GAD
paroxetine
escitalopram
paroxetine dose for GAD
20 mg QD
range 20-40 mg/day
escitalopram dose for GAD
10 mg QD
range 10-20 mg QD
advantages of SSRIs
no potential for dependence
effective for a number of anxiety disorders
well tolerated
no psychomotor impairment
disadvantages of SSRIs
takes at least 1 month to work high incidence of sexual dysfunction large number of drug-drug interactions Not PRN expensive discontinuation if not tapered
TCA used for GAD
imipramine
imipramine brand name
tofranil
imipramine dose
150-300 mg HS. must be titrated
AEs of Imipramine
Anticholinergic
sedation
orthostasis
Agents used for GAD
BZD Buspar SNRI SSRI TCA Pregabalin Hydroxyzine
Pregabalin brand name
lyrica
hydroxyzine brand name
atarax
vistaril
pregabalin dose
50 mg TID
dose range 150-600 mg/day in divided doses
Hydroxyzine dose for GAD
25-100 mg QID
Hydroxyzine AEs
sedation blurred vision dry mouth constripation urinary retention NOT WELL TOLERATED
Non-pharm treatment of GAD
stress management classes short term counseling to improve coping skills meditation yoga massage therapy avoid caffeine, OTC stimulants Exercise
1st line for GAD if no acute relief is needed
SNRI or SSRI
Drug for GAD if acute relief is needed
BZD x 4-8 weeks
What to use after failing a first drug in GAD
SNRI or SSRI
Panic disorder is characterized by
Panic attacks
Panic attacks peak in
10 minutes
for a panic attack there must be 4+ of the following symptoms
palpitations, pounding heart, accelerated heart rate sweating trembling/shaking SOB or smothering feeling of choking CP or discomfort Nausea or abdominal distress derealization or depersonalization dizzy, unsteady, lightheaded, or faint fear of losing control or going crazy fear of dying paresthesias chills or heat sensations
2 components of panic disorder
panic attack
fear of having a panic attack
What medications are used to treat panic disorder
TCAs MAOIs SSRIs Venlafaxine BZDs
TCAs used for Panic disorder
Imipramine
Clomipramine
Desipramine
Imipramine dose for panic disorder
50 mg HS
increase by 50 mg q 3 days
150 mg HS
clomipramine dose for panic disorder
50 mg HS
increase by 50 mg q 3 days
150 mg HS
Desipramine dose for panic disorder
50 mg HS
increase by 50 mg q 3 days
150 mg HS
MAOI used for panic disorder
Phenelzine
Phenelzine dose for Panic disorder
15 mg AM x 3 days
15 mg BID x 3 days
30 mg AM + 15 mg Noon
range 45-90 mg/day in divided doses
SSRIs used for panic disorders
Paroxetine
Fluoxetine
Sertraline
Paroxetine dose for panic disorder
10 mg x 1 week
20 mg x 1 week
40 mg QD (60 if necessary)
Fluoxetine dose for GAD
10 mg x 1 week
20 mg x 1 week
40 mg x 1 week
60 mg QD if necessary
Sertraline dose for Panic disorder
25 mg x 1 week
50 mg x 1 week
100 mg QD (150-200 if necessary)
venlafaxine dose for panic disorder
37.5 mg QD x 1 week
75 mg QD x 1 week
150 mg QD up to 225 mg
Advantages of using antidepressants for panic disorder
no risk for dependence
disadvantages for using antidepressants for panic disorder
takes 4 weeks to effect
not PRN
d/c syndrome
sexual dysfunction
BZDs used for panic disorder
Alprazolam
Clonazepam
Alprazolam dose for panic disorder
0,5 mg QID increase to 4-12 mg /day
dose of Alprazolam XR for panic disorder
0.5 mg QD
increase 0.5 mg q 3-4 days to
1-10 mg QD
dose of clonazepam for panic disorder
0.5 mg BID up to 3 mg BID
advantages of using BZDs for panic disorder
work rapidly
PRN
disadvantages of using BZDs for panic disorder
Risk of abuse/dependence
Length of treatment for panic disorder
panic free + 12 months
non-pharm treatments for panic disorder
cognitive behavior therapy
exercise
drug if acute relief is needed for panic disorder
BZD x 2-4 weeks + SSRI/Venlafaxine
1st line agents for panic disorder
SSRi or venlafaxine
drug given after failing one drug for panic disorder
another SSRI or venlafaxine
social phobia is characterized by
intense irrational fear of scrutiny or evaluation by others in social situations due to anticipation of humiliation or being made feel ridiculous
Age of onset of social anxiety disorder
grade school
Drugs for social anxiety disorder
MAOI SSRI SNRI Beta blockers BZDs gabapentin pregabalin tramadol
MAOI used for social anxiety disorder
Phenelzine
Phenelzine dose for social anxiety disorder
15 mg AM x 3 days
45-90 mg /day in divided doses
SSRIs used for social anxiety disorder
paroxetine
sertraline
fluvoxamine CR
paroxetine dose in social anxiety disorder
30-50 mg /day
sertraline dose in social anxiety disorder
100-200 mg /day
fluvoxamine CR dose in social anxiety disorder
100-300 mg /day
SNRI used for social anxiety disorder
venlafaxine
venlafaxine dose for social anxiety disorder
37.5 mg QD
dose range 75-225 mg /day
how long is an adequate trial in social anxiety disorder
12 weeks
which beta blockers are used for social anxiety disorder
propranolol
atenolol
propranolol dose in social anxiety disorder
10-30 mg QD
beta blockers help with what in social anxiety disorder
symptoms (HR, tremor, blushing)
NOT PSYCH
atenolol dose in social anxiety disorder
50-100 mg QD
BZD used in social anxiety disorder
Clonazepam
clonazepam dose in social anxiety disorder
0.5 mg BID
dose range 1-4 mg/day
gabapentin dose for social anxiety disorder
300 mg BID
dose range 900-3600 mg/day in divided doses
Pregabalin dose in social anxiety disorder
100 mg TID up to 600 mg / day
Buspar dose for social anxiety disorder
15-30 mg/day
1st line agents for social anxiety disorder
SSRI or venlafaxine XR
length of treatment for social anxiety disorder
12 months
5 subtypes of specific phobias
animal (spider, snake) Natural environment (thunder) blood-injection situational (elevators, tunnels, bridges) Other
Non-pharm treatment for specific phobia
avoid object
systematic desenzitizaiton
define specific phobia
persistant fear of a circumscribed object or situation
define obsessions
intrusive or recurrent thought, image, or impulse that is anxiety provoking to the person and that cannot be ignored or suppressed voluntarily.
Define compulsions
Behavior or ritual that is performed in a repetitive or stereotypic way which is designed to reduce anxiety or prevent a future event.
treatment options for OCD
clomipramine fluoxetine fluvoxamine paroxetine sertraline
clomipramine brand name
anafranil
clomipramine dose for OCD
25 mg HS -> 100 mg daily
max 250 mg/day
Fluoxetine dose for OCD
20 mg/day -> 60-120 mg/day
Fluvoxamine dose for OCD
50 mg hs increase by 50 mg every 4-7 days to max 300 mg/day in 2 divided doses
Paroxetine dose for OCD
10-20 mg/day increased by 10 mg QW up to 50mg/day
Sertraline dose for OCD
25-50 mg/day increased by 50 mg QW or QOW up to 200mg/day
nonpharm treatment for OCD
behavioral modificiation
Cognitive behavior therapy
Define PTSD
characteristic symptoms after exposure to 1+ traumatic events
Nonpharm treatment for PTSD
CBT - Treatment of choice
Eye movement Desensitization and Reprocessing
Pharm treatments for PTSD
TCAs MAOIs SSRIs antidepressants Anxiolytics Adrenergic inhibitors
TCAs used for PTSD
imipramine
amitriptyline
imipramine dose for PTSD
50-300 mg/day
amitriptyline dose for PTSD
50-300 mg/day
MAOIs used for PTSD
Phenelzine
Phenelzine dose for PTSD
15-90 mg/day
SSRIs used for PTSD
citalopram fluvoxamine fluoxetine Paroxetine Sertraline
citalopram dose for PTSD
20-60 mg/day
fluvoxamine dose for PTSD
100-250 mg/day
Fluoxetine dose for PTSD
20-80 mg/day
Paroxetine dose for PTSD
20 mg/day
Sertraline dose for PTSD
25 mg QD x 1 week, then 50 mg qd
range 50-200 mg/day
other antidepressants used for PTSD
bupropion mirtazepine nefazodone trazodone venlafaxine
bupropion dose for PTSD
200-450 mg/day
mirtazepine dose for PTSD
15-45 mg/day
nefazodone dose for PTSD
200-600 mg/day
Trazodone dose for PTSD
50-400 mg/day
Venlafaxine dose for PTSD
75-225 mg/day
Anxiolytic agents for PTSD
buspirone
alprazolam
clonazepam
buspirone dose for PTSD
15-60 mg/day
Alprazolam dose for PTSD
0.25 - 6 mg/day
Clonazepam dose for PTSD
0.5 - 4 mg/day
Adrenergic inhibitors used for PTSD
clonidine
guanfacine
prazosin
propranolol
clonidine dose for PTSD
0.2-6 mg/day
guanfacine dose for PTSD
0.5-3mg HS
prazosin dose for PTSD
2-10 mg/day
propranolol dose for PTSD
40-160mg/day in divided doses
1st line treatment for PTSD
SSRI
length of treatment for PTSD
12 months.