psychopharm4 Flashcards
fluoxetine
prozac; longest half life, so no need to taper; safe in pregnancy and children; more common sleep changes and anxiety; can elevate levels of neuroleptics leading to incr side effects
sertraline
zoloft; highest risk for GI disturbances; very few drug interactions; more common sleep changes
paroxetine
paxil; several drug interactions because it is higly protein bound; more anticholinergic effects; short half life leading to withdrawal phenomenon if not taken consistently
fluvoxamine
Luvox; currently approved only for OCD; n/v more common; lots of drug interactions
citalopram
celexa; fewest drug-drug interactions; possibly fewer sexual side effects
escitolopram
lexapro; levo-enantiomer of citalopram; similar efficacy; more expensive than citalopram
side effects of SSRIs
sexual dysfunction; GI disturbance (nausea and diarrhea); insomnia (also vivid dreams); headache; anorexia, weightloss; restlessness (on initiation and termination); seizures
examples of SNRIs
velafaxine and duloxetine; side effects similar to SSRIs
venlafaxine
effexor; used for depression, anxiety disorders, and may have some use in ADHD
venlafaxine (effexor) should not be used in what patients
those with untreated or labile BP because it can increase BP
what is desvenlafaxine
Pristiq; it is the active metabolite of venlafaxine and it is expensive
duloxetine
Cymbalta; often used for people with depression and neuropathic pain or in fibromyalgia; more dry mouth and constipation related to norepi effects; more liver side effects
how does bupoprion work?
wellbutrin; norepi-dopamine reuptake inhib
benefits of buproprion
lack of sexual side effects; some efficacy in treatment of adult ADHD; side effects include incr risk of seizures and psychotsis at high doses and incr anxiety in some
buproprion is contraindic in which patients
patients with seizures or active eating disorder and in those currently on MAOI
trazadone
seratonin antag and reuptake inhib; useful in refractory major depression, major depression with anxiety, and insomnia; no sexual side effects, no effect on REM sleep
side effects of trazadone
nausea, dizziness, orthostatic hypotension, cardiac arrythmias, sedation, and priapism
nefazodone
similar to trazadone; seratonin-norepi-dopamine reuptake inhib; black box warning for rare but serious liver failure
mirtazapine
remeron; alpha 2 adrenergic receptor antag; treatment for refractory major depression, esp in patients who need to gain weight
side effects of mirtazapine (remeron)
sedation, weight gain, dizziness, somnolence, tremor, dry mouth, constip and rare agranulocytosis; no sex side effects and few drug interactions
how do TCAs work
inhibit reuptake of norepi and seratonin; incr availability of monoamines in the synapse
TCA side effects
greater than SSRIs and lethal in overdose
two types of TCAs
tertiary amines and secondary amines
tertiary amines
type of TCA; highly anticholinergic, more sedating, greater lethality in overdose
example of tertiary amine
amitryptline, imipramine, clomipramine, doxepin