Anti-Depressants Flashcards
Citalopram drug class
SSRI
Citalopram clinical pearl
QTc prolongation for doses greater than 40mg/day
Citalopram cyp interactions
CYP 2C19 substrate
Escitalopram drug class
SSRI
Fluoxetine drug class
SSRI
Fluoxetine clinical pearl
long half life
No need to taper down
Weight loss, insomnia, fatigue
Fluoxetine CYP
2C19 and 3A4 inhibitor
Fluvoxamine drug class
SSRI
Fluvoxamine clinical pearl
approved for OCD
Fluvoxamine CYP
1A2
Paroxetine drug class
SSRI
Paroxetine clinical pearl
must taper due to anticholinergic effects
weight gain, sedation
Pregnancy category D
Paroxetine CYP
2D6
Sertraline drug class
SSRI
SSRI general adverse effects
increased bleeding risk, anxiety/agitation, GI UPSET, sexual dysfunction, hyponatremia/SIADH, decreased bone mineral density, akathisia
Desvenlafaxine drug class
SNRI
Desvenlafaxine clinical pearls
Dose limited side effect: nausea
renal dosing
Desvenlafaxine CYP
no cyp interactions
Duloxetine drug class
SNRI
Duloxetine clinical pearl
slowly titrate dose to avoid nausea
HEPATOTOXICITY- MUST GET LFT’S AT INITIATION
Duloxetine CYP
1A2 substrate
2D6 inhibitor and substrate
Levomilnacipran drug class
SNRI
Levomilnacipran clinical pearl
Must adjust dose in renal impairment or strong CYP
Levomilnacipran CYP
3A4 substrate
Milnacipran drug class
SNRI
Milnacipran clinical pearl
indicated for fibromyalgia
renal dosing
Venlafaxine drug class
SNRI
Venlafaxine clinical pearl
Dose must be >150mg/day to have NE effects
Venlafaxine CYP
substrate of 2D6 and 3A4 (major)
SNRI general adverse effects
Variable amounts of sedation, increased bleeding risk, anxiety/agitation (when starting), GI upset, sexual dysfunction, blood pressure elevation, hyponatremia, decreased bone mineral density, nausea, akathisia
Amitriptyline drug class
TCA
Desipramine drug class
TCA
Doxepin drug class
TCA
Imipramine drug class
TCA
Nortriptyline drug class
TCA
Amitriptyline clinical pearl
used at lower doses for neuropathic pain
Doxepin clinical pearl
commonly used for insomnia
Nortriptyline clinical pearl
Used in smoking cessation
TCA adverse effects
CNS: sedation, increased seizures, confusion
Anticholinergic: blurred vision, urinary retention, constipation
CV: orthostatic hypotension, tachycardia
Others: weight gain, sexual dysfunction
OVERDOSE CAN CAUSE ARRHYTHMIAS
Isocarboxazid drug class
MAOI
Phenelzine drug class
MAOI
Selegiline drug class
MAOI
Tranylcypromine drug class
MAOI
MAOI clinical pearls
Must have 2 week washout period between antidepressants (5 weeks if fluoxetine)
Tyramine diet
Can cause serotonin syndrome and hypertensive crisis
MAOI contraindications
pheochromocytoma, hepatic/renal dysfunction, cerebrovascular disease, excessive caffeine use, elective surgery, concomitant sympathomimetics (cocaine, amphetamines, etc.), CV disease, use with SSRI
Bupropion MOA
Dopamine/NE reuptake inhibitor (does not affect serotonin)
Bupropion contrainidications
active seizure disorder or eating disorder (stimulating effects suppress appetite)
Bupropion CYP
2D6 inhibitor
Mirtazepine MOA
Presynaptic alpha-2 blocker as well as 5HT2, 5HT3, and H2 receptor blockage
Mirtazepine adverse effects
increased sedation and appetite in doses smaller than 15mg/day
warning for agranulocytosis and increased cholesterol
NO CLINICALLY SIGNIFICANT INTERACTIONS
Trazodone MOA
Selectively inhibits neuronal reuptake of serotonin and acts as an antagonist at 5HT1, 5HT2, H1, and alpha-1
Trazodone clinical pearls
sedation (pts may not be able to tolerate high effective doses), can see lower doses of trazodone being used in combination with other antidepressants despite SSRI component
PRIAPISM
Vilazodone MOA
SSRI and possibly contributes to 5HT1a agonism (possibly making it work faster?)
Vilazodone clinical pearls
take with food, titrate up to 40mg
Major CYP 3A4 interactions
Vortioxetine MOA
SSRI and 5HT1A agonist, 5HT3 antagonist
Vortioxetine clinical pearls
take with meals
Strong CYP 2D6 substrate
Imipramine use
children with ADHD or nocturnal enuresis