WK 3 - PHARM slides Flashcards
(52 cards)
Safest and most effective for depression, anxiety…
SSRIs
Fluoxetine
Selective
Serotonin
Reuptake
Inhibitors
What is the MOA of SSRIs?
Fluoxetine
inhibits serotonin reuptake
not allowing to go into cells so floating around in blood
What are the SSRIs (-tine)
fluoxetine used for?
DEPRESSION
bipolar, OCD, Panic, bulimia, premenstrual dysphoric disorders
Which is safer?
TCA, MAOI, SSRI
SSRI
better tolerated and just as effective as TCA and MAOI
Is the suicide risk higher or lower when taking SSRIs?
Higher - patient starts feeling better but still has suicidal ideas and now hows the energy to follow through with plan
What are the side effects of SSRIs, Fluoxetine?
Suicide Risk
Sexual dysfunction
weight gain
Serotonin syndrome
withdrawal symptom if stopped abruptly
Bruxism
Bruxism - what is it and what should you do about it?
Clenching teeth, headache
See a dentist to get a guard
S/S of serotonin syndrome…
agitation
confusion
anxiety
fever
diaphoresis
tremors
How long before beginning to feel therapeutic effects of fluoxetine (SSRIs)?
2 or more weeks
Fluoxetine drug interactions…
MAOI - 14 day gap stoppage before giving fluoxetine
Stop PROZAC 5 weeks before starting MAOI
Do NOT combine with TCA or Lithium
Monitor response to warfarin
SSRIs & SNRIs
What is the difference?
They have the same effect
But…
SSRI = safer
SNRI - added norepinephrine
SNRI -Serotonin Norepinephrine reuptake inhibitors. MOA-
(-ine)
Venlafaxine
Duloxetine
inhibits serotonin and norepinephrine reuptake
Venlafaxine adverse effects:
neonatal withdrawal syndrome with late pregnancy use
withdrawal syndrome of stopped abruptly
do NOT take with MAOIs
Duloxetine adverse effects
Liver toxicity -
no ETOH
no Liver disease patients
TCA = Tricyclic Antidepressants
MOA
Imipramine
amitriptyline
increase effects of serotonin and norepinephrine in the CNS
Side effects of SNRIs
duloxetine
venlafaxine.
Serotonin Syndrome (St. John’s wort)
fatigue,
insomnia
constipation
nausea
decreased libido
suicide risk
Indications of SNRIs
duloxetine
venlafaxine. (-ine)
Depression, anxiety, neuropathic pain
TCA = Tricyclic Antidepressants
Adverse effects
Imipramine
amitriptyline
Dangerous - (SSRI more safe)
- Cardiac toxicity and risk of overdose
- MOST COMMON - orthostatic hypotension
- Anticholinergic effects (can’t see, pee, spit, poop - BUT you do sweat)
- Tachycardia
- arrhythmias
- seizures
- hypomania
- suicide risk
How many doses is lethal for TCAs?
Imipramine?
8 times the daily dose
only give one week supply to patients
Dosing is best once daily at bedtime due to sedation effects
MAOIs - when in the treatment of depression would you bring in, how effective are they, and how safe are they?
Later choice
effective
Dangerous
What should you avoid if on MAOIs that cause hypertensive crisis?
foods rich in TYRAMINE
fermented
aged cheese
cured meats
avocado
bananas
red wine
caffeine
pepperoni
Hypertensive crisis - s/s =
SEVERE HEADACHE
extremely high BP
Stroke - bleed
Confusion
Lethargy
What is the drug of choice for Atypical depression?
depression with a temporary mood boost
MAOIs
When taking MAOIs you should avoid…
ALL meds that have not been approved by DR