NSAIDs Flashcards

1
Q

What three symptoms do NSAIDs primarily treat? What diseases are they often used with?

A

Fever, pain, inflammation

Rheumatoid arthritis and osteoarthritis

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2
Q

What is the mechanism of NSAIDs?

A

Inhibition of prostaglandin synthesis by targeting COX 1 and COX 2

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3
Q

Which prostaglandin modulates gastric mucosal acid secretion, mucus levels, and blood flow?

A

PGE2

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4
Q

Which prostaglandin has vasodilatory properties?

A

PGI2

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5
Q

Which prostaglandins cause systemic fever, local heat, and pain?

A

PGE2 and PGI2

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6
Q

What do all of the prostaglandins cause?

A

Erythema

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7
Q

Which COX is constitutive and protective?

A

COX-1

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8
Q

Which COX is inducible and inflammatory?

A

COX-2

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9
Q

What does PUBS stand for?

A

Perforations, symptomatic ulcers, GI bleeds

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10
Q

What are the most common and frequently encountered side FX of NSAIDs?

A

Gastric or intestinal ulceration (inh of PGI2 and PGE2), disturbances in platelet function (inh of TxA2)

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11
Q

What is Stevens-Johnson syndrome?

A

Diffuse, severe, mucocutaneous eruption involving 2 or more mucosal surfaces w/ or w/o visceral involvement

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12
Q

What is the most popular reason people use aspirin?

A

Heart disease

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13
Q

What is mechanism of salicylates?

A

Nonselective inhibition of COX-1 and COX-2

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14
Q

Acetylsalicylic acid (Aspirin)

A

Covalently, irreversibly inhibits COX-1 and COX-2 and platelet aggregation

Inflammation, pain, fever, prophylaxis for thromboembolic conditions (prevents clot formation)

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15
Q

What toxicities are associated with aspirin?

A

CNS - highs and lows, respiratory alkalosis, respiratory acidosis, Reye’s syndrome (swelling of liver and brain)

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16
Q

Should children take aspirin?

A

NO

17
Q

Acetaminophen (Tylenol)

A

Weak peripheral COX-1 and COX-2 antagonist

Decreases prostaglandins synthesis

Pain, fever

18
Q

What are toxicities associated with acetaminophen?

A

Hepatic damage

19
Q

Tylenol is toxic at ____ the therapeutic dose and fatal at ____ the therapeutic dose.

A

10x

20x

20
Q

What do you administer for tylenol overdose?

A

N-acetyl-cysteine (Mucomyst) to replace hepatic glutathione and activated charcoal to decrease further absorption

21
Q

What do you administer for aspirin overdose?

A

Sodium bicarb

22
Q

Should alcoholics take acetaminophen?

A

NO - their liver function is impaired

23
Q

Ibuprofen (Advil/Motrin) and Naproxen (Aleve)

A

Proprionic acid derivative that reversibly inhibits COX-1 and COX-2

Decreases prostaglandin synthesis

Pain - acute and chronic RA and osteoarthritis, reduce fever, anti-inflammatory

24
Q

Indomethacin (Indocin)

A

Acetic acid derivative; reversibly inhibits COX-1 and COX-2, less prostaglandins made

Acute gouty arthritis, ankylosing spondylitis, promotes closure of patent ductus arteriosus in newborns, reduces fever, anti-inflammatory

25
Q

Diclofenac (Cambia)

A

NSAID

Decreases arachidonic acid levels

26
Q

Ketorolac (Toradol)

A

NSAID

Potent analgesic useful for post-op pain if trying to avoid narcotics and approved for parenteral administration

27
Q

***coxib - Celecoxib (Celebrex)

A

***coxib - COX-2 specific inhibitor (minimizes risk of stomach ulcers)

NSAID - pain/inflammation

Increases risk of heart attack or stroke

28
Q

What should we only use aspirin for?

A

Prophylaxis against thromboembolic disorders