Depression Flashcards
Dose a monoamine oxidase inhibitors
Phenelzine 15mg once daily
Dose a tricyclic antidepressant
Amitriptyline 150mg once a day at bedtime
Dose a selective serotonin reuptake inhibitor
Sertraline 100mg once daily
Dose a serotonin/norepinephrine reuptake inhibitor
Cymbalta 60mg once daily
If depression is left untreated, 15% of patients
commit suicide
Diagnosis of depression needs
depressed mood or loss of interest for at least 2 weeks + at least 4 of the following in the same period:
change in sleep pattern
change in appetite/weight
fatigue
psychomotor agitation or retardation
feelings of worthlessness/guilt
diff thinking/concentrating/ indecisiveness
recurrent thoughts of death, suicidal ideation, plans or attempts
What guidelines do we use to diagnose mental disorders
DSM-5
What monoamine oxidase inhibitors is available as a patch?
Selegeline
ADRs or monoamine oxidase inhibitors
Suicidal thinking/behavior Dizzy, lightheaded Drowsy, fatigue, weakness BP effects Hypoglycemia possible
MOA of monoamine oxidase inhibitors
Monoamine levels rise in nerve endings, synapses, etc.
monoamine oxidase inhibitors include
Tranylcypormine
isocarboxazid
phenelzine
selegeline (targets MOA-B)
secondary amines of tricyclic antidepressants include
nortriptyline
desipramine
tertiary amines of tricyclic antidepressants include
amitriptyline clomipramine doxepin imipramine trimipramine
tetracyclic amines of tricyclic antidepressants include
Maprotiline
How do you dose tricyclic antidepressants?
Based on observation, not plasma levels. So side effects and clinical response
ADRs of tricyclic antidepressants
Histamine receptor blockade= sedation
Alpha adrenergic blockade= postural hypotn
anticholinergic= clurred vision, dry mouth, constipation
cardiac= arrhythmias, sinus tachy, prolongation of conduction time
How often should tricyclic antidepressant be dosed?
Most effective once a day, single dose at bedtime