MSK Pharm Flashcards
What is the mechanism of zileutron?
Inhibits lipoxygenase to inhibit leukotriene synthesis
What is the mechanism of montelukast and zafirlukast?
leukortiene receptor antagonists
What is the function of LTB4?
Neutrophil chemotactic
What is the function of PGI2?
inhibits platelet aggregation and promotes vasodilation
What are the 2 functions of acetaminophen?
1- antipyretic
2- analgesic
NOT AN ANTI INFLAMMATORY
How does acetominophen cause hepatic necrosis?
Its metabolite (NAPQI) depletes glutathione and forms toxic byproducts in the liver
What regenerates glutathione?
NAC
Effect of low does aspirin?
decrease platelet aggregation
Effect of intermediate dose aspirin?
Antpyretic and analgesic
Effect of high dose aspirin?
Anti-inflammtory
What is an AE of celecoxib?
increased risk of thrombosis
Sulfa allergy
What is used to close a PDA?
Indomethican–> COX inhibitor to decreased PGE2
What are the AEs of NSAIDS?
nephritis
gastric ulcers
renal ishcemia (because no vasodilation of afferent arterioles)
What is the mechanism of bisphosphonates?
inhibit osteoclast activity
What is a possible AE of bisphosphonates?
corrosive esophagitis, osteonecrosis of the jaw
What is teriparatide?
recombinant PTH analog to increase osteoblastic activity
What is a possible AE for teriparatide?
Increased risk for osteosarcoma
What is the mechanism of allopurinol?
Inhibits XO
What is the mechanism of febuxostat?
inhibits XO
What is the mechanism of pegloticase?
recombinant uricase that catalyzes metabolism of uric acid to allantoin
What is the mecahnism of probenecid?
inhibits reabsorption of uric acid in PCT
What is an AE of probenecid?
can precipitate uric acid calculi
What drugs are used to treat gout acutely?
NSAIDS
Glucocorticoids
Colchicine
How does cochicine work?
Binds to and stabilizes tubulin to inhibit microtubule polymerization (impairing neutrophil chemotaxis and degranulation)
What is etanercept?
TNF alpha inhibitor
What is infliximab/ adalimumab?
TNF alpha inhibitor
What are the TNF alpha inhibitors used to treat?
RA, psoriasis, ankylosing spondylitis, IBD (infliximab)