Mechanisms of action Flashcards

1
Q

irreversibly (covalent), non-selectively inhibits COX, reducing PG and TXA2 synthesis

A

Aspirin (ASA)

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2
Q

inhibits COX and PG synthase

A

Acetaminophen

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3
Q

enhances 5-HT release (which attenuates pain mediator generation) and regulates body temperature by acting centrally

A

Acetaminophen

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4
Q

A_____ acts centrally whereas A______ acts peripherally in pain relief

A

Acetaminophen, Aspirin

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5
Q

Selectively, reversibly (non-covalent) inhibits COX-2 and reduces PG synthesis

A

Celecoxib

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6
Q

which two opium alkaloids are synthetic?

A

Hydrocodone and Heroin

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7
Q

which two opium alkaloids are naturally occurring?

A

Morphine and Codeine

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8
Q

Act through G-protein coupled Mu, Delta, Kappa opioid receptors, stimulate prolactin and growth hormone release

A

Hydrocodone/Acetaminophen

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9
Q

Hyperpolarization with Hydrocodone/Acetaminphen is caused by outflow/decrease in _____ and increase/influx of _____

A

Potassium (K+); Chloride (Cl-)

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10
Q

central acting synthetic opioid

A

Tramadol

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11
Q

agonist selective for mu receptors and weak inhibitor of NE/5-HT reuptake

A

Tramadol

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12
Q

unilateral, pulsating, lasting 2-72 hours

A

Migraine

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13
Q

behind or around one eye, excruciating, sharp pain, lasting 15-90 minutes

A

Cluster headaches

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14
Q

bilateral around head, dull/persistent, driven by stress, up to 7 days per episode

A

Tension headaches

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15
Q

prophylactic migraine therapy

A

Topiramate

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16
Q

acute migraine attack therapy

A

Triptans (e.g. sumatriptan), Ergotamines

17
Q

B-blockers cause ______ of blood vessels and trycyclin antidepressants cause an ____ in serotonin levels for prophylaxis migraine therapy

A

vasoconstriction; increase

18
Q

selectively activates vascular serotonin 5 HT-1 receptors

A

Sumatriptan

19
Q

stimulates neuronal serotonin receptors, decreasing the release of peptides substance P and CGRP

A

Sumatriptan

20
Q

which migraine drug is structurally similar to biogenic amines?

A

Ergotamine

21
Q

which migraine drug inhibits CN-V pain transmission?

A

Ergotamine

22
Q

which migraine drugs stimulate serotonin receptors producing intracranial vasoconstriction?

A

Sumatriptan, Ergotamine

23
Q

drug that blocks voltage-gated sodium channels, inhibits carbonic anhydrase, and antagonizes glutamate receptors

A

Topiramate

24
Q

augments GABA activity and stimulates Cl- channel and which causes hyperpolarization

A

Topiramate

25
Q

in coagulation, the ____ pathway affects the ____ of vit K dependent coagulation factors

A

extrinsic; synthesis

26
Q

in coagulation, the ____ pathway affects the _____ of coagulation factors

A

intrinsic; activation

27
Q

the ____ pathway is more important to the coagulation process and the ____ pathway is more important to the inflammation pathway

A

extrinsic; intrinsic

28
Q

factor __ is common to both extrinsic and intrinsic coagulation pathways

A

X

29
Q

factor X cause conversion of ____ to _____

A

prothrombin to thrombin

30
Q

thrombin causes conversion of _____ to ______

A

fibrinogen to fibrin

31
Q

which drug inhibits ____ of oxidized vitamin K which prevents activation of factors __, __, __, ___ which are in intrinsic, extrinsic, and common pathways?

A

reduction; II, VII, IX, X; coumadin

32
Q

fractionated low molecular weight heparin in ____ binds to antithrombin which causes _____ inactivation of clotting factor __a and __a and ____ inhibits coagulation

A

Enoxoparin; irreversible; Xa; IIa (thrombin); indirectly

33
Q

which is predictable and safer- enoxoparin or heparin?

A

Enoxoparin- it has a longer half life, less bleeding, and can be done outpatient

34
Q

which anti-hemolytic has NO antidote?

A

Rivaroxaban

35
Q

binds to the active site of factor Xa which inhibits coagulation

A

Rivaroxaban

36
Q

The 5 platelet stimulating agents that activate GP IIa/IIIb receptors for thrombus formation are?

A

TXA2, ADP, thrombin, serotonin, collagen

37
Q

ADP receptor blocker that IRREVERSIBLY blocks ___ dependent activation of GP receptor is what drug?

A

calcium; Clopidogrel