Psych Pharmacology Flashcards
SSRI
Fluoxetine (Prozac)
- Dose - 10mg - 60mg, weekly form 90mg
- FDA indications- MDD (age 8+), OCD (age 7+), panic disorder, bulimia, PMDD
- Monitoring-none
- Side Effects- most likely to cause insomnia, anxiety, reduced appetite
Misc Info
* Has longest half live (active metabolite T1/2 is 2+ weeks) of any SSRI which can make it self-tapering (no discontinuation syndrome)
* stimulating med
SSRI
Paroxetine (Paxil)
- Dose: 10mg - 40mg
- Indications- MDD, OCD, panic disorder, social anxiety, GAD, PTSD, PMDD, menopausal hot flashes
- Monitoring- none
- Side Effects- weight gain, sexual side effects, sedation
- Pregnancy category D, so avoid if possible in women of child-bearing age
- Half life of less than 24 hours, bad rebounds symptoms if stopped abruptly
SSRI
Sertaline (Zoloft)
- Dose: 50mg - 300mg
- Indications- MDD, OCD (age 6+), panic disorder, PTSD, PMDD, social anxiety
- Monitoring- none
- Side Effects- n/v/d (called squirt-raline due to GI sx)
SSRIs
Citalopram (Celexa)
- Dose: 10mg - 40mg
- Indications- MDD
- Monitoring- none
- Side Effects- QTc prolongation (do not exceed 40mg/day)
SSRIs
Escitalopram (Lexapro)
- Dose: 10mg - 20mg
- Indications- MDD (age 12+), GAD
- Monitoring- none
- Side Effects- Considered the cleanest SSRI meaning it has the fewest SE
- Enantiomer of citalopram (S enantiomer is the pure active form and R enantiomer has anticholinergic properties which causes more side effects)
SSRI
Fluvoxamine (Luvox)
- Dose: 50mg - 300mg
- Indications- OCD, MDD, panic disorder, GAD, PTSD
- Monitoring- none
- Side Effects: general SSRI side effects
- Less commonly used, many drug-to-drug interactions
SNRI
Blocks serotonin and norepinephrine reuptake transports to increase both in synaptic cleft
SNRIs
Venlafaxine (Effexor)
- Dose: 37.5mg - 225mg
- Indications- MDD, social anxiety disorder, GAD, panic disorder
- Monitoring- periodic BP
- Side Effects- anorexia, dizziness, dry mouth, sweating, sexual side effects, nervousness, hypertension, hyponatremia (in volume depleted)
- Has significant discontinuation syndrome even with the XR formulation, titrate off very slowly or consider using fluoxetine taper
SNRIs
Desvenlafaxine (Pristiq)
- Dose: 50mg - 200mg
- Indications- MDD (fibromyalgia off label)
- Monitoring- periodic BP
- Side Effects- hypertension, nausea, dizziness, insomnia, excessive sweating, sexual side effects
SNRIs
Duloxetine (Cymbalta)
- Dose: 20mg - 120mg (typically BID)
- Indications- MDD, GAD (ages 7+), diabetic peripheral neuropathic pain, fibromyalgia, chronic MSK pain
- Monitoring- LFTs is suspect liver disease, periodic BP
- Side Effects- liver disorders, nausea, dry mouth, insomnia, fatigue, HA, sexual side effects, urinary hesitation, urinary retention
- Very useful in patients with comorbid pain syndromes or with stress urinary incontinence
SNRIs
Levomilnacipran (Fetzima)
- Dose: 20mg - 120mg
- Indications- MDD
- Monitoring- periodic BP and pulse
- Side Effects- nausea, vomiting, constipation, sweating, increased HR, urinary hesitation, urinary retention
- second line due to elevated cost & high occurrence of side effects
NRDI
Bupropion (Wellbutrin)
- Dose: comes in IR and XL version. 75mg - 450mg
- Indications- MDD, seasonal affective disorder, smoking cessation (Zyban)
- Side effects- seizure, agitation, insomnia (take in morning to reduce), HA, nausea, vomiting, tremor, tachycardia, NE effects make this med stimulating making it particularly useful in patients with fatigue and poor concentration associated with depression
- Lack of sexual side effects and weight gain make it very useful in patients suffering these SE from other meds or are worried about this SE
- Can reduce seizure threshold so don’t give in bulimic patients and be very careful in patients with alcohol use disorder and electrolyte disorders
Mirtazapine (Remeron)
- MOA- serotonin antagonist and alpha-2 adrenergic antagonist
- Dose: 7.5mg to 45mg
- Indications- MDD
- Monitoring- weight
- Side Effects- somnolence, increased appetite, weight gain, agranulocytosis or severe neutropenia (rare)
- Its tendency to cause stimulant appetite and sedation makes it a great choice for some patients (insomnia, cachexia, etc) but a terrible option for others (eating disorders, body dysphoric disorder)
- If patient has too much sedation at starting dose, consider increasing dose as it has more noradrenergic activity relative to antihistaminergic activity at higher doses
Trazodone
- MOA- serotonin reuptake inhibitor, alpha-1 adrenergic antagonist, serotonin receptor antagonist
- Dose: 25mg to 300mg
- Indications- MDD (insomnia, anxiety off label)
- Monitoring- no routine monitoring
- Side Effects- drowsiness, dry mouth, lightheadedness, orthostatic hypotension, priapism (TrazoBone)
- Mostly used for insomnia due to its sedating qualities
Vilazodone (Viibryd)
- MOA- serotonin reuptake inhibitor and serotonin partial agonist
- Dose: 10mg to 40mg
- Indications- MDD
- Monitoring- no routine monitoring
- Side Effects- diarrhea, nausea, vomiting, insomnia, hyponatremia
- Must be taken with food
Fewer Sexual side effects
Vortioxetine (Trintellix)
- MOA- multimodal antidepressant: antagonist, partial agonist, and agonist of different serotonin receptors
- Dose: 5-20mg
- Indications- MDD
- Monitoring- no routine monitoring
- Side Effects- GI side effects, sexual side effects
- Helps with cognitive functioning in depression
Brexpiprazole (Rexulti)
- MOA- dopamine D2 and serotonin partial agonist and antagonist
- Dose: 0.5mg to 4mg
- Indications- schizophrenia, depression adjunct (never monotherapy for depression)
- Monitoring- fasting glucose, lipids
- Side Effects- weight gain, akathisia, somnolence, tardive dyskinesia, impulse control problems, pathologic gambling
Esketamine (Spravato)
- MOA- NMDA receptor antagonist
- Indications- treatment resistant major depression (in conjunction with an oral antidepressant)
- Monitoring- must be monitored after dose for 2 hours (cannot be taken at home)
- Side Effects- sedation, dissociation, elevated BP, cognitive impairment, hypertensive crisis
- Recently approved for treatment resistant major depression, even more recently approved for use in emergency room for urgent depressive episode or suicidal ideation
TCAs
- Meds: nortryptiline, amitryptiline
- MOA- serotonin and NE reuptake inhibitor which causes its therapeutic effects, but it also blocks histamine and muscarinic receptors and effects Na and Ca channels which account for its side effects and toxicity
- Indications- MDD
- Monitoring- ECG if history of cardiac disease, requires plasma levels
- Side Effects- sedation, dry mouth, constipation, weight gain, sexual side effects, urinary hesitation, blurred vision, arrhythmias, QT prolongation
- monitor for overdose/toxicity
Cognitive Behavior Therapy
- recognizing thoughts/triggers and challenging those thoughts
- CBT monotherapy is just as effective as antidepressants monotherapy
- for best results: combine CBT + meds!
Light Box Therapy
- Indications- indicated for seasonal affective disorder and non-seasonal depression
- Side effects- eye strain, HA, mania in bipolar patients (uncommon)
MOA
* Light boxes emit full spectrum light with the standard minimum intensity of 10,000 lux (similar to light experienced if standing outside for 30 minutes
* Decreases melatonin production (so don’t use before bedtime)
Electroconvulsive Therapy (ECT)
- Indications- treatment resistant or severe depression (either unipolar or bipolar), catatonia
- Side effects- acute confusion, memory loss, tension HA (30%), nausea, jaw pain
- Induces a generalized seizure which has antidepressant/antipsychotic effects via unknown mechanism
- Treatments given 3x/wk, response usually within 3-6 treatments, average number of treatments = 7-10 (inpatient treatment); High remission rate however relapse is common with out maintenance treatment
- Most effective treatment for depression