Psychiatry Flashcards
Methylphenidate: Family
CNS stimulant
Dextroamphetamine: Family
CNS stimulant
Methamphetamine: Family
CNS stimulant
CNS Stimulant: Mechanism
Increases catecholamines at synaptic cleft (NE and DA)
CNS Stimulant: Use (3)
ADHD
Narcolepsy
Appetite control
Haloperidol: Family
Antipsychotic (high potency)
Trifluoperazine: Family
Antipsychotic (high potency)
Fluphenazine: Family
Antipsychotic (high potency)
Thioridazine: Family
Antipsychotic (low potency)
Chlorpromazine: Family
Antipsychotic (low potency)
Antipsychotics: Mechanism
Dopamine D2 receptor antagonist (increases cAMP)
Antipsychotics: Use (4)
Schizophrenia (positive symptoms)
Psychosis
Acute mania
Tourette’s syndrome
Antipsychotics: Toxicity (5)
EPS side effects Endocrine (hyperprolactinemia) Antimuscarinic Antihistamine Alpha 1 blocker (hypotension)
High potency antipsychotics: Toxicity
neurologic side effects (EPS)
Low potency antipsychotics: Toxicity (3)
Anticholinergic
Antihistamine
Alpha-1 blockade
Evolution of EPS Side Effects:
4hr, 4day, 4wk, 4mo
4hr: acute dystonia (muscle spasm, stiffness, oculogyric crisis)
4day: akathisia (restlessness)
4wk: bradykinesia (parkinsonism)
4mo: tardive dyskinesia
Neuroleptic malignant syndrome (4)
Rigidity
Myoglobinuria
Autonomic instability
Hyperpyrexia
NMS: treatment
Dantrolene D2 agonist (bromocriptine)
Olanzapine: Family
Atypical antipsychotic
Clozapine: Family
Atypical antipsychotic
Quetiapine: Family
Atypical antipsychotic
Risperidone: Family
Atypical antipsychotic
Aripiprazole: Family
Atypical antipsychotic
Ziprasidone: Family
Atypical antipsychotic
Atypical antipsychotics: Mechanism
Varied effects on 5-HT2, dopamine, alpha and H1 receptors
Atypical antipsychotics: Use (7)
Schizophrenia (positive and negative) Bipolar OCD Anxiety Depression ania Tourette's syndrome
Which atypical antipsychotic most likely cause EPS? Which the least?
Risperidone - the most
Clozapine - the least
Clozapine: Side effect (2)
Agranulocytosis (weekly WBC monitoring)
Seizures
Clozapine and Olanzapine: Side effect
Weight gain
Ziprasidone: Side effect
Prolonged QT interval
Lithium: Mechanism
Inhibition of phosphoinositol cascade
Lithium: Use (2)
Mood stabilizer for bipolar (blocks relapse and acute manic events
SIADH
Lithium: Toxicity (7)
Polyuria (ADH antagonist) Ebstein anomaly Heart blcok Hypothyroidism Tremor Sedation Edema
How is lithium cleared in the body?
Exclusively kidneys
Most is reabsorbed at proximal tubules following Na+
Use of what can increase lithium levels (2)
NSAIDS
Thiazide
Buspirone: Mechanism
Stimulates 5-HT1A receptors
Buspirone: Use
Generalized anxiety
Buspirone: Side effect
Does not cause sedation, addiction, tolerance
Does not interact with alcohol
Fluoxetine: Family
SSRI
Paroxetine: Family
SSRI
Sertraline: Family
SSRI
Citalopram: Family
SSRI
SSRI: Use (7)
Depression Generalized anxiety disorder Panic disorder OCD Bulimia Social phobias PTSD
SSRI is contraindicated in what?
Acute mania
SSRI: Side effect (3)
Serotonin syndrome
Sexual dysfunction
GI distress
Fewer Side effects than TCAs
Serotonin syndrome (7)
Hyperthermia Confusion Myoclonus Cardiovascular collapse Flushing Diarrhea Seizures
Serotonin syndrome: Treatment
Cyproheptadine (5-HT2 receptor antagonist)
Venlafaxine: Family
SNRI
Duloxetine: Family
SNRI
SNRI: Use (3)
Depression
Generalized anxiety (Venlafaxine)
Diabetic peripheral neuropathy (Duloxetine)
Which SNRI has greater effect on NE?
Duloxetine
SNRI: Side effect (4)
Increased BP
Stimulant effects
Sedation
Nausea
Amitriptyline, Nortriptyline,: Family
TCA
Imipramine, Desipramine, Clomipramine: Family
TCA
Doxepin: Family
TCA
Amoxapine: Family
TCA
TCA: Mechanism
Blocks reuptake of NE and 5HT
TCA: Use (4)
Major depression
Bedwetting (imipramine)
OCD (Clomipramine)
Fibromyalgia
TCA: Toxicity (5)
Convulsion, Coma, Cardiotoxicity
Respiratory depression
hyperpyrexia
Anticholinergic (3 TCA more)
Which TCA has higher anticholinergic side effects?
Amitriptyline
Which TCA has lower anticholinergic side effects?
Nortriptyline
Which TCA is less sedating but has higher seizure threshold?
Desipramine
TCA Cardiovascular toxicity: Treatment
NaHCO3
Tranylcypromine: Family
MAO inhibitor
Phenelzine: Family
MAO inhibitor
Isocarboxazid: Family
MAO inhibitor
Selegiline
selective MAO-B inhibitor
MAO inhibitors: Use (3)
Atypical depression
Anxiety
Hypochondriasis
MAO inhibitors: Side effects (2)
Hypertensive crisis
CNS stimulation
What causes hypertensive crisis of MAO inhibitors?
Ingestion of tyramine (wine and cheese)
What medications cause serotonin syndrome?
TCA SSRI MAO inhibitors St. John's wort Meperidine Dextromethorphan
Bupropion: Mechanism
Increase NE and DA
Bupropion: Use (2)
Smoking Cessation
Depression
Bupropion: Side effects (3)
Stimulant effects (tachycardia, insomnia)
Headache
Seizures in bulimic patients
Which depression medication does not cause sexual side effect?
Bupropion
Mirtazapine: Mechanism
Alpha-1 antagonist (Increases NE and Serotonin)
Potent 5-HT2 and 5-HT3 receptor antagonist
Mirtazapine: Side effects (4)
Sedation (desirable for insomnia)
Increased appetite
Weight gain (desirable for elderly or anorexic)
Dry mouth
Maprotiline: Mechanism
Blocks NE reuptake
Maprotiline: Side effects (2)
Orthostatic hypotension
Sedation
Trazodone: Mechanism
Serotonin reuptake inhibitor
Trazodone: Use (2)
Low dose: insomnia
High dose: antidepressant
Trazodone: Side effects (4)
Sedation
Nausea
Priapism
Postural hypotension