Watts Antidepressants Flashcards
what was the first antidepressant and what class?
imipramine
types of depression with percentages
reactive - 60%
major depressive disorder - 25%
bipolar affective - 15%
drug induced depression classes
antihypertensive
sedative hypnotics
anti-inflammatory/analgesics
steroids
biogenic amine hypothesis
reserpine depletes NE and 5HT
neuroendocrine hypothesis
overactive HPA and CRF
stress causes hypothalamus to release cortisol
antidepressants do what to CRF
reduce levels
CRF1 does what
arousal
anxiety
sexual dysfunction
sleep problems
activation of HPA axis
CRF2 does what
appetite suppression
neurotrophic hypothesis
depressed ppl have reduced BDNF and volume of hippocampus
antidepressants to what to BDNF
increase
increase in BDNF does what to dendritic sprouts
increase
MAO inhibitors mechanism of action
prevents degradation of NE and 5HT by mao
- increased amount of NE and 5HT packaged in vescicles
non selective MAO inhibitors
phenelzine
tranylcypromine
non selective MAO inhibitors are _________
irreversible
MAO B selective inhibitor
selegiline (reversible)
MAO A selective inhibitor
moclobemide
MAO side effects
headache
drowsiness
dry mouth
weight gain
orthostatic hypotension
sexual dysfunction
avoid what kind of foods with MAO
tyramine containing
orthosteric site is where what binds?
serotonin
indications for TCAs
depression, pain, panic, enuresis
patients more likely suicidal with what class
TCAs (2 weeks into treatment)
tertiary amines inhibit what
NE and 5HT via NET and SERT
tertiary amines also are antagonists at what
antihistamine
antimuscarinic
antiadrenergic
side effects of tertiary amines
weight gain
sedation
autonomic
(very strong)
also conduction of heart
tertiary amine drugs
imipramine
amitriptyline
clomipramine
doxepin
imipramine metabolized to what
desipramine (secondary amine)
amitriptyline metabolized to what
nortriptyline (secondary amine)