Drug Treatments Flashcards
(19 cards)
SSRIs
- Prozac (fluoxetine)
- Paxil (paroxetine)
- Zoloft (sertraline)
- Celexa (citalopram)
- Lexapro (escitalopram)
SNRIs
- Effexor (venalafaxine)
- Pristiq (desvenlafaxine)
- Cymbalta (duloxetine)
Side Effects
- Emotional numbing
- Anorgasmia/sexual response
- Reduced “error detection” (anterior cingulate) governs over detection, drives consciousness, perfection and so on (give a damn level)
- weight gain
- Insomnia (sleep not as restful)
- Grinding of teeth (bruxism)
- Withdrawal syndrome
- Activation syndrome
- Gastrointestinal Distress
- Birth defects, heart defects, lung defects, add, risk of autism
- Tardive dysphoria= long antidepressant usage leads to more depression
- occasionally increased suicide risk
Tricyclics
- Tofranil (imipramine)
- Elavil (amitriptyline)
- Similar response rate as SSRIs, but lethal overdose potential
- Until 20 yrs ago most popular antidepressant; now less widely used
Atypical Antidepressants
- Wellbutrin (bupropion)
- Remeron (mirtazapine)
Wellbutrin works on dopamine/reward circuits - (spontaneous orgasm)
- only one that targets dopamine
- things more pleasurable
- potentially ups anxiety levels
- higher dosages can cause seizure and look like epilepsy
- below 300mg low dose
Remora hits dopamine and serotonin circuits - evidence of high response rate
- major weight gain
St. John’s Wart (hypericum)
- Largest U.S. study: St John’s = placebo, but both = Zoloft
- acts like and ssri in the brain
- but companies say: st. john’s wort: ineffective for MDD because didn’t beat placebo.
but Zoloft = GOOOOOD! (when not really)
Amount of people taking antidepressants that do not meet criteria for depression?
over 60%
Amount od patients that see a primary dr and not a psychiatrist?
3 out of 4
Efficacy Rates
- Short term: Full recovery: 25-35%
- Favorable response: 40-60%
STAR*D Trial
> 4,000 patients start on Celexa. keep trying new meds until patients recovers.
< 6% of all pts fully recovered for one year.
New kid on the block… SSRI+?
Viibryd
Antidepressant use since 1990?
- 400% increase
- 4x as many anti d-s as before, no drop in MDD
Viibryd
SSRI that also effects post-synaptic serotonin receptors (not more effective)
How many Americans take anti-d’s over the age of 12?
1 out of 9 over the age of 12 take anti-d’s
short term
full recovery
“favorable response” to SNRIs and SSRIs (?)
full recovery: ~25-35%
“favorable..”: 40-60% (so fifty percent don’t have a stellar response)
Placebo vs. No Treatment?
Placebo KICKS ASS. b/c patient thinks they are on medicine. But, trained clinician can tell who is on drug and who is not (via side effects)
Across 47 studies in FDA database….
meds beat placebo in fewer than half of studies.
- overall, placebo ~ 80% of drug response
Iatrogenic
- illness caused by meds
- treatment is supposed to be helpful but causes negative effects
NOCEBO
negative effects of a placebo study