Pharm, antidepressants, Linger Flashcards

(58 cards)

1
Q

What are the sSRIs

A
citalopram
escitalopram
fluoxetine
fluvoxamine
paroxetine
setraline
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2
Q

what are the Selective serotonin NE reuptake inhibitors

A

duloxetine

venlafaxine

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3
Q

what tricyclic antideppressants are used in depression

A

amitriptyline
desipramine
imipramine
nortriptyline

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4
Q

what is the 5-HT2 antagonist used in depression

A

tazodone

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5
Q

what are the tetracyclic and unicyclic agents

A

buproprion

mirtazapine

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6
Q

what MAOI is used in depression

A

selegiline

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7
Q

forms MAOI selegiline is available in

A

transdermal patch
sublingual
bypass gut and liver for increased bioavialability

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8
Q

MOA SSRI

A

allosterically inhibit serotonin transporter to increase [ ] in cleft
80% SET blocked at therapeutic dose

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9
Q

what is MOA proposed for chronic use SSRI

A

down regulation post synaptic %-HT2a R density

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10
Q

SNRIs and tricyclic antidepressant MOA

A

inhibit SERT and NET increasing NT [ ]

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11
Q

affinity of tricyclic antidepressants for R

A

muscarinic too, Histamine and alpha adrenergic

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12
Q

5-HT2 antagonist MOA

A

trazodone and nefazodone

antagonize postsynaptic R to enhance tone

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13
Q

MOA Bupropion

A

selective inhibitor of dopamine transporter stimulates release NE and DA
no direct effect on serotonin reuptake or R

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14
Q

MAOI MOA

A

cause accumulation NE 5-HT and DA in vesiicles at nerve endings

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15
Q

MOA selefiline

A

selective irreversible MAO-B inhibitor at low doses

nonselective MAOA/B inhibitor at high dosese (depression)

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16
Q

MOA phenelzine and tranylcypromine

A

nonselective irreversible MAOIs

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17
Q

which tricyclic antidepressants stimulate muscarinic R the most

A

amitriptyline

protriptyline

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18
Q

which antidepressants work on SERT the most

A
citalopram
clomipramine
fluoxetine
flucoxamine
parozetine
sertraline
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19
Q

which antidepressants have highest affinity for NET

A

despramine

protriptyline

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20
Q

70-80% depressino patients achieve remission via what

A

switching to another agent or augmentation by addition of another drug

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21
Q

When adequate response for depression achieved, what is therapy recommendation

A

minimum 6-12 mo to reduce risk of relapse

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22
Q

patients considered for long term maintenance when

A

> 2 MDD episodes in previous 5 years or >3 in lifetime

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23
Q

second most common use antidepressants

A

anxiety disorders

PTSD, OCD, social anxiety, generalized anxiety and panic disorder

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24
Q

OCD is known to respond to what agents

A

serotonergic agents like fluoxetine and fluvoxamine, paroxetine and clompramine

25
what antidepressants are used in pain disorders
TCA and SSRI
26
What antidepressants are used for premenstrual dysphoric disorder
SSRIs fluoxetine setraline
27
Tx schedule for premenstrual dysphoric disorder
2 weeks during luteal phase
28
which antidepressants are used in eatind disorders
fluoxetine and others | bulimia not anorexia
29
what antidepressants are used for insomina
amitriptyline and trazodone
30
Which TCA is used for pruritis
doxepin because works on histamine R
31
first line for Tx MDD and anxiety
SSRIs because fewer antimuscarinic effects and less cardiotoxic in overdose
32
What is a drug for depression in patients who cannot tolerate sexual dysfunction, weight gain and sedation
bupropion
33
2nd 3rd line agents for MDD
TCAs and MAOIs because potentially lethal in overdose need titration to achieve therapeutic dose serious effects and interactions
34
Adverse effects of all antidepressants
increased suicidality in patients under age 25
35
side effects SSRIs
mild sedation and antimuscarinic effects GI: nuasea, vomiting, upset stomach, constipation diminished sexual function libido delayed orgasm, diminished arousal HA, insomnia, hypersomnia and weight gain
36
What is discontinuation syndrome
dizziness and paresthesia after sudden discontinuation | seen with SSRI and SNRI and TCA
37
Serotonin syndrome
overdose SSRI or concurrent MAOI use
38
CI to SSRI
patients displaying active manic Sx | paroxetine CI in pregnant patients
39
Adverse effects to SNRIs
serotonergic effects and! noradrenergic like insomnia, anxiety and agitation inc BP and HR venlafaxine inc bleeding risk and related with cardiac toxicity in overdose
40
adverse effects TCA
``` anticholinergic: dry mouth, constipation urinary retention, blurred vision and confusion orthostatic hypotension weight gain and sedation cardiotoxicity arrhythmias and heart block hepatic dysfunction hyponatremima hematologic abnormalities sexual side effects like sSRI ```
41
which TCA exhibit marked antimuscarinic and cardiac side effects
imipramine and amitriptyline
42
CI to TCA
arrhythmias, recent MI, liver disease, glaucoma, mania
43
adverse effects 5-HT2 antagonist
sedation and GI disturbances | orthostatic hypotension
44
black box warning nefazodone
hepatotoxicity and potentially lethal hepatic failure
45
adverse effects bupropion
agitation and insomnia and anorexia
46
which antidepressants do not have significant sexual side effects
5-HT2 antagonists | bupropion and mirtazapine
47
adverse effects MAOIs
orthostatic hypotension and weight gain | highest rate sexual side effects!!!!!!!!
48
discontinuation syndrome in MAOI
delirium like presentation with psychosis, excitement and confusion
49
amitriptyline overdose
arrhythmia, altered mental status and seizures
50
amitriptyline overdose
arrhythmia, altered mental status and seizures | gastric decontamination is helpful up to 8 hr post ingestion
51
MAOI overdose
``` autonomic instability hyperadrenergic Sx psychotic Sx confusion delirium, fever and seizures ```
52
pharmokinetics of antidepressants
inhibitors of CYP450 or substrates
53
St Johns wort PK
herbal med that induces CYP450 | used to Tx depression
54
Sx serotonin syndrome
cognitive: delirium, agitation coma ANS: HTN, tachy, hyperthermia, diaphoreses somatic: myoclonus, hyperreflexia, tremor
55
switching between SSRI and MAOI
current therapy needs to be discontinued for at least 2 weeks ***6 weeks for fluoxetine because longer half life***
56
Tx serotonin syndrome
withdraw offending drug, sedation with benzo, paralysis, intubation, ventilation consider 5-HT2 block with cyproheptadine or clorpromazine
57
Foods with significant amounts tyramine
pickled, aged, smoked, marinated, meats (spoiled), chocolate, alcoholic beverages, fermented foods like cheese
58
CI with tyramine food
MAOI because normally metabolized by MAO so with large amounts leads to HTN crisis NE release from peripheral nerves and inc HR and BP (potentially fatal!*)