Anti-Depressants Flashcards
Tricyclic Antidepressants
Amitriptyline, imipramine, clomipramine, trimipramine, doxepin
Serotonin Specific Reuptake Inhibitors
Citalopram, escitalopram, fluoxetine, paroxetine, sertraline, fluvoxamine
Atypical antidepressants
bupropion (NE and Dopamine reuptake inhibitor), atomoxetine (selective norepinephrine reuptake inhibitor), mitrazapine (a2 antagonist as serotonin and NE disinhibit), nefazodone, trazodone (serotonin antagonist/ reuptake inhibitor)
MAO inhibitors
Moclobemid, tranylcypromine
Antidepressant indications
depression, mood elevators, anxiety disorders, pain (not analgesics), enuresis
Latency
2-3 weeks, after first week sedation plus vegetation adverse effects, increased suicidal risk, observation in hospital necessary, second week physical activity observed, third week patient elevated mood and decreased morbid preocupation
Treatment
lowest possible dose, progressive increase until therapeutic dose
Duration
3-6 months, should not be stopped suddenly, increased suicidal risk
TCA
oldest class, most effective, second line because of orthostatic hypotension, arrhythmias, tachycardia, anticholinergic, risk of poisoning, TI is 7, dispense one week supply
Acute intoxication
vital functions supported and monitored (seizures, arrhythmias), gastric lavage, activated charcoal, physostigmine, phenytoin (arrhythmia, suppression of seizure), lidocaine and beta blockers(arrhythmia), diazepam(seizures and myoclonic/dystonic),
SSRI reuptake inhibitors
first line dugs, side effects like loss of appetite, nausea, vomitting, diarrhea, decreased libido, headache, insomnia, somnolence, nightmares, increased QT interval (citalopram, escitalopram),
Atypical antidepressants
different mechanisms, no anticholinergic effects
MAO inhibitors
third line, only administered if previous cases have failed, atypical depression, minimum 2 weeks switching classes
Antidepressants should not be administered together with drugs causing an inhibitory effect upon CNS
alcohol, antihistaminic, barbiturates, benzodiazepines, hypnotics, opioids
MAO inhibitors should not be associated
with food that contains tyramine (headache, tachycardia, HBP, arrhythmia, stroke), or with SSRIs (serotonin syndrome :fever, agitation, neuromuscular irritability, hypotension, coma, death