Antidepressants Flashcards
4 Functional Roles of ALL Biogenic Amines
Modulate appetite, sleep reg, anxiety, and sexual behavior
Progression of Depression Treatment (5)
30s: ECT
40s: Lithium
50s: TCAs
60s: MAOIs
80s: SSRIs
Tricyclic Antidepressants (TCAs)
Now predominantly to treat painful peripheral neuropathies and migraine headaches
Old Generation Antidepressant Problems
Noncompliance due to adverse effects, or PCPs didn’t want to use bc of lethal overdose potential from CV toxicity.
Had anticholinergic effects, HTN, weight gain
2 Old Gen Antideps
TCAs and MAOIs
Special consideration w/ MAOI
Hypertensive crisis from not metabolizing DA/NE. can’t be on any other meds that increase BP, and have to control diet trp (cheese) as a precursor
New Gen Antideps
Comparable efficacy as old gen, but less side effects and lower potential for overdose
3 New Gen Antideps
SSRIs, SNRIs, Atypical Antideps
Atypical Antideps (only 1 and why atypical)
Bupropion/Wellbutrin - doesn’t modulate 5HT, only DA/NE. So no sexual side effects
Dirty Drugs
Things like TCA bind other Rs giving a ton of side effects. Things like SSRIs are more specific
AutoRs 5HT1A and 5HT1D
On presyn, get bathed in 5HT and thus densensitized over time, which increases firing rate and amount of NT released w/ each nerve impulse, so you really get a crescendo
4 SNRIs
Nefazadone
Venlafaxine (Effexor)
Mirtazapine (Remeron)
Duloxetine (Cymbalta)
7 SSRIs
Luvox Prozac Zoloft Paxil Celexa Lexapro Viibryd
Prior Antidep Treatment (3)
Prior treatment response rechallege: 85% response rate
1st degree relative treatment response: 75%
Novel: 65%
3 Adverse Effects from SS/NRIs
Insomnia (so dose in morning)
GI distress
Sexual dysfunction, w/ anything that modulates 5HT so Bupropion only one that doesn’t: decreased libido/delayed orgasm/anorgasmia/delayed ejaculation