Antidepressant Drugs Flashcards
(PH-1) List the prototype antidepressant drugs for the following classes of drugs: tricyclics, SSRI’s, SNRI’s, and MAO inhibitors. (PH-2) Describe the mechanism of action for the prototype tricyclic, SSRI, SNRI, and MAO inhibitor antidepressants, list their appropriate clinical uses, and their major side effects and contraindications. PH-3) Describe the mechanism of action of amoxapine, bupropion, mirtazapine and trazodone, list their appropriate clinical uses, and their major side effects and
TCA prototypes (3)
inipramine, amitriptyline, clomipramine
TCA MOA
block 5-HT, and NE reuptake
side effects of TCA
anticholerginic (dry mouth, blurred vision, constpation, urinary retention, worseing glaucoma, delerium)
current clinical uses of TCA
less for depression, more for sleep and neuropathic pain
toxicity of TCAs
can cause cardiac conduction problems
MOA of MAOis
blocks the action of intracellular monoamine oxidase
prototype MAOi (3)
tranylcypromine, phenelzine, isocarboxazid
length of effect of MAOi after drugs are stopped
2 weeks
main cause for ineffectiveness of antidepressant meds
insufficent time taking meds and/or inadequate doses
time to effect of antidepressant
4-8 weeks
possible lethal SE of MAOi
hypertensive crisis and sertonin syndrome
foods that can cause hypertensive crisis with MAO
cheese,beer, chanti, femented sausages, sauerkraut, soy sauce
sx of serotonin syndrome
tremors, hyperreflexia, clonus, fever, agitation, diaphoresis, possibly death
MAO can interact with which drugs to cause serotonin syndrome
serotonic ADs, some opioids (fentanyl, tramadol)
parkinson’s drugs that interact with MAOi
selegiline, rasagiline
antibiotics that interact with MAOi
isoiazid and linezoid
non-lethal SE of ADs
orthostatic hypotension, sexual dysfunction, weight gain
clinical use of MAOi
refractory depression
MOA of SSRI
bock the presynaptic serotonin reuptake pump
SSRI protypes (6)
fluoxetine, setralline, paroxetine, fluvoxamine, citalopram, escitalopram
SE of SSRIs
agitation, insommnia, sexual dysfunction, n/v
advantages of SSRI
cheap, few side effects, more effective
longest t 1/2 SSRI
fluoxetine,
SSRI that can be used for people who tend to skip doses
fluoxetine
time after stopping that fluoxetine can interact with other drugs
up to 5 weeks
SSRI that tends toward nausea
setraline
SSRI that is most sedating
paroxetine
drug that can cause severe withdrawal (2)
paroxetine, SNRIs
drug that can cause prolonged QT intervals
citalopram
SSRI that can interact with PPIs
citalopram
SSRI that can cause problems with CYP2C19
citalopram
SNRI prototypes (2)
venlafaxine and duloxetine
MOA of SNRI (moderate doses)
inhibits 5-HT and NE
MOA of SNRI (high doses)
inhibits reuptate of 5-HT, NE and dopamine
non AD uses of duloxetine
diabetic neuropathy, fibromyalgia, stress urinary incontenince
SE of SNRI
(noradrenigic) insomnia, sweating, dry mouth, constipation, worseing of glaucoma
starting SE of SNRI
nausea
can cause withdrawal sx in a single dose
SRNIs
nefazodone/trazodone MOA
block 5-HT2 receptors
advantages of nefazodone/trazodone over SSRI
no sexual dysfunction, agitation or sleep dyfunction issues
nefazodone toxicity
liver failure (rare)
rare, but serious SE of trazodone
priapism
buproprion MOA
inhibits NE and DA uptake
helps with nicotine cessation
burprprion
advantages of buproprion
no sexual side effects, has stimulant effect
contraindicated in people with seziures, eating disordersm or EtoH/benzo withdrawal
buproprion
SE of buproprion
constipation, dry mouth, insomnia, sweating
mirtazapine MOA
blocks presynnaptic a-2 receptors on 5HT neurons - increasing 5-HT at synapse
advantages of mirazapine
less sexual/sleep.agitation effects and less nausea
SE of mirazapine
sedating and weight gain
AD used in oncology and in geriatric pts
mirazapine
uses of ECT
severe-drug resistant depression, bipolar and schizophrenia
remission rate in ECT
86%
potent CYP2D6 inhibitors
paroxetine and fluxetine
cancer drug that can interact with SSRIs
tamoxifen
SSRI indicated for kids
fluoxetine
AD for panic disorder
TCA
AD for OCD
clomipramine
AD for ADHD
desipramine
AD for panic disorder.social phpbia
MAOi
AD used for premenstral dysphoric disorder/bullimia. trichotillimania
SSRI
AD drug for neuropathy and fibromyalgia
SNRI
amine hypothesis of depression
functional decrease of NT amines (NE, serotonin) causes depression
fluoxetine + (lithium/TCA/warfarin)
increased levels of second drug
fluvoxamine + (alprazolam, theophylline, TCA, warfarin)
increased levels of second drug
MAOis + (sympathopmimetics+tyramine+SSRI)
hypertensive crisis/serotonin syndrome
nefazodone+ alprazolam/triazolam
increased levels of second drug
paroxetine + procyclidine, theophylline/TCA/warfarin
increased levels of second drug
sertraline +(TCA/warfarin)
increased effects of both
TCA+ CNS depressents
additive CNS depression
TCA+ central acting HBP meds
decreased effect of HBPs
Causes dose dependent hypertension
Venlafaxine
Imipramine class
TCA
Amitripyline class
TCA
Desipramine class
TCA
Nortriptyline class
TCA
Clomipramine
TCA
Amoxapine
TCA
Setraline class
SSRI
Fluoxetine
SSRI
citalopram
SSRI
Venlafaxine
SNRI
Duloxetine
SNRI
Phenelzine class
MAOI
Tranylcypromine
MAOI
Isocarboxazid
MAOI
Selegiline
MAOI
ANTIDEPRESSANT that causes weight gain
Mirtazapine