Psychiatry Clerkship Flashcards
Selective serotonin reuptake inhibitors (SSRIs)
An adequate trial is considered 4-6 weeks SA: headache, GI disturbance, sexual dysfunction, increased bleeding (2/2 platelet dysfunction), increased risk of peptic ulcers (avoid NSAIDs)
Venlafaxine (Effexor)
SNRI SA: diaphoresis, increased BP Not the best for hypertensive patients
Duloxetine (Cymbalta)
SNRI FDA approved for pain
Mirtazapine (Remeron)
Alpha2-adrenergic receptor antagonist Good for the elderly, increases appetite, sedating
Tricyclic antidepressants (TCAs)
SA: sedation, weight gain, orthostatic hypotension, anticholinergic effects, prolonged QT interval Most lethal in overdose –> arrythmias
Monoamine oxidase inhibitors (MAOIs)
Used for refractory depression SA: hypertensive crisis when used with sympathomimetics or ingestion of tyramine-rich foods (wine, beer, aged cheeses, liver, smoked meats), orthostatic hypotension, serotonin syndrome if combined with other serotonergic drugs
Lithium
Mood stabilizer Indicated for bipolar I Reduces suicide risk SA: weight gain, tremor, GI disturbance, fatigue, arrhythmias, seizures, goiter/hypothyroidism, leukocytosis, nephrogenic DI, polydipsia, alopecia, metallic taste Avoid in renal disease, heart disease, hyponatremia or diuretic use Check creatinine and TFTs before starting
Carbamazepine
Anticonvulsants Indicated for bipolar I, esp. rapid cycling or mixed features
Valproic acid
Anticonvulsants Indicated for bipolar I, esp. rapid cycling or mixed features Avoid in liver disease Monitor for thrombocytopenia
Sertraline (Zoloft)
SSRI Good for atypical depression and MDD with psychotic features FDA approved for PTSD
Citalopram (Celexa)
SSRI FDA approved for MDD Good for depression in the elderly and for behavioral issues related to dementia Prolongs QTc
Prazosin
Alpha1-receptor antagonist Indicated for nightmares and hypervigilance a/w PTSD
Escitalopram (Lexapro)
SSRI Best tolerated SSRI FDA approved for MDD and GAD
Melatonin
Indicated for circadian rhythm sleep disorders
Pramipexole
Dopamine agonist Indicated for Parkinson disease and restless leg syndrome
Quetiapine (Seroquel)
Atypical antipsychotic SA: sedating Adjunct for depression
Modafinil
Nonamphetamine Indicated for narcolepsy
Risperidone
Atypical antipsychotic SA: hyperprolactinemia (sexual dysfunction, gynecomastia in men, amenorrhea, glactorrhea)
Aripiprazole (Abilify)
Atypical antipsychotic More weight neutral Good adjunct for depression SA: akathisia
Clozapine (Clozaril)
Atypical antipsychotic SA: agranulocytosis, seizures, myocarditis, orthostatic hypotension Very effective but reserved for patients who have failed at least 2 antipsychotic trials as need to regularly monitor CBC
Olanzapine
Atypical antipsychotic SA: weight gain
Paliperidone (Invega)
Atypical antipsychotic Metabolite of risperidone
Lurasidone (Latuda)
Atypical antipsychotic Adjunct for bipolar, minimal effect on QTc
Ziprasidone
Atypical antipsychotic SA: prolongs QTc Minimal effect on weight
Treatment for acute mania
Antipsychotics (quick onset) Lithium Valproate
Lamotrigine
Anticonvulsant Indicated for bipolar depressive episodes SA: Stevens-Johnson syndrome
Treatments for extrapyramidal symptoms
Acute dystonia –> benzotropine or diphenhydramine (IM) Akathisia –> reduction of antipsychotic dose + beta-blocker or benzodiazepine Parkinsonism –> benzotropine or amantadine Tardive dyskinesia –> no definitely treatment but clozapine may help
Neuroleptic malignant syndrome
S&S: fever/hyperthermia, autonomic instability (tachycardia, labile BP, tachypnea, diaphoresis), muscle rigidity (lead-pipe), AMS, elevated CK Causes: antipsychotics, antiemetics, antiparkinson medication withdrawal Tx: stop the antipsychotic, supportive care (hydration, cooling), dantrolene or bromocriptine