TCAs, NDRI, SARI, and mirtazapine Flashcards
what are the three most commonly used TCAs
amitriptyline
doxepine
nortriptyline
brand name of amitriptyline
elavil
brand name of doxepine
sinequan
brand name of nortriptyline
pamelor
dosage range for amitriptyline
25-100mg qd
FDA approved uses for amitriptyline
depression
off label uses for amitriptyline
neuropathic pain
fibromyalgia
migraine
back/neck pain
anxiety
insomnia
tx resistant depression
max dose of amitriptyline for elderly
100mg
labs to monitor for amitripyline
baseline ECG, CBC, LFT, fasting glucose
pregnancy risk of amitriptyline
risk v. benefit
which TCAs have to be tapered to dc
all of them slowly
contraindications for TCAs
recent MI
other meds that prolong QT interval, arrythmias
HF
interaction between amitriptyline and CBD
CBD increases concentration of amitriptyline
what medical history would make you be cautious with TCAs
hx of seizures
urinary retention
hypokalemia
renal/hepatic impairment
dosage range for doxepine to treat insomnia
3-6mg QHS
dosage range for doxepine to treat depression
25-150mg QHS
FDA approved uses for doxepine
psychoneurotic depression/anxiety
depression/anxiety associated with alcoholism
psychotic disorders w/ anxiety
insomnia
geriatric considerations for doxepin
baseline ECG
more sensitive to anticholinergic side effects
labs to monitor with doxepine
ECG (if CV dx)
CBC
LFT
fasting glucose
pregnancy risk with doxepine
risk v. benefit
Not in lactation
what additional medical contraindication for doxepin
angle-closure glaucoma
dosage for nortriptyline
100mg qd
uses for nortriptyline
MDD
smoking
what is the only NDRI
bupropion
brand name for bupropion
wellbutrin
dosage range for bupropion XL
150-450mg qd
dosage range for bupropion IR
100-450mg BID
FDA approved uses for bupropion
MDD
seasonal afffective disorder
nicotine addiction
off label uses for bupropion
bipolar depression
ADHD
sexual dysfunction
geriatric considerations for bupropion
lower doses
pregnancy risk for bupropion
risk v. benefit
what dosage of bupropion increases seizure risk
> 450mg
contrindications for bupropion
hx of seizures
anorexia/bulimia
recent head injury
nervous system tumor
what is something important to remember about bupropion
can be abused by crushing/snorting or injecting
bupropion dose with renal/hepatic impairment
75mg
dose of bupropion with severe cirrhosis
150mg every other day
interaction of bupropion with narcotic pain relievers
bupropion decreases their effectiveness
is bupropion associated with discontinuation syndrome
no
therapeutic indications for bupropion
MDD
smoking cessation
bipolar disorders
ADHD
cocaine detox
hypoactive sexual desire disorder
does bupropion precipitate mania
less likely to than TCAs or other antidepressants
why is bupropion contraindicated w/ substance abuse
potential euphoric effects
what type of patients should not be prescribed bupropion
those with severe anxiety or panic disorder
bupropion in pregnancy
safe
bupropion/fluoxetine combo
can cause panic, delirium, and seizures
bupropion/lithium combo
may cause CNS toxicity (including seizures)
bupropion administration with dopaminergic drugs (antiparkinson drugs)
increased risk of psychotic sx
lab interference with bupropion
false positive for amphetamines
bupropion and metoprolol
sinus bradycardia
max amount for single dose of IR bupropion
150mg
dose increases of IR bupropion should never exceed what
100mg in 3 days d/t increased risk of seizures
max single dose for SR bupropion
300mg
max single dose of ER bupropion
450mg
bupropion dosage for smoking cessation
150mg BID
how long does bupropion therapy continue for smoking cessation
usually 7-12 weeks
mechanism of action for mirtazapine
increases firing of norepinephrine and serotonin neurons d/t antagonism of a2-adrenergic receptors
half-life of mirtazapine
30 hours