NSAIDs Flashcards
What three symptoms do NSAIDs primarily treat? What diseases are they often used with?
Fever, pain, inflammation
Rheumatoid arthritis and osteoarthritis
What is the mechanism of NSAIDs?
Inhibition of prostaglandin synthesis by targeting COX 1 and COX 2
Which prostaglandin modulates gastric mucosal acid secretion, mucus levels, and blood flow?
PGE2
Which prostaglandin has vasodilatory properties?
PGI2
Which prostaglandins cause systemic fever, local heat, and pain?
PGE2 and PGI2
What do all of the prostaglandins cause?
Erythema
Which COX is constitutive and protective?
COX-1
Which COX is inducible and inflammatory?
COX-2
What does PUBS stand for?
Perforations, symptomatic ulcers, GI bleeds
What are the most common and frequently encountered side FX of NSAIDs?
Gastric or intestinal ulceration (inh of PGI2 and PGE2), disturbances in platelet function (inh of TxA2)
What is Stevens-Johnson syndrome?
Diffuse, severe, mucocutaneous eruption involving 2 or more mucosal surfaces w/ or w/o visceral involvement
What is the most popular reason people use aspirin?
Heart disease
What is mechanism of salicylates?
Nonselective inhibition of COX-1 and COX-2
Acetylsalicylic acid (Aspirin)
Covalently, irreversibly inhibits COX-1 and COX-2 and platelet aggregation
Inflammation, pain, fever, prophylaxis for thromboembolic conditions (prevents clot formation)
What toxicities are associated with aspirin?
CNS - highs and lows, respiratory alkalosis, respiratory acidosis, Reye’s syndrome (swelling of liver and brain)