MSK Flashcards
What PG inhibits platelet aggregation? what med blocks this?
PGI2
epoprostenol - pulmonary hypertension
What PG increases uterine tone? what meds block them?
PGE2 - Dinoprostone - cervical ripening
PGF2
carboprost - abortifacent
latanoprost - glaucoma
What is the MOA of montelukast?
leukotriene receptor antagonist
What med blocks lipoxygenase and therefore leukotriene synthesis?
Zileuton
What drug only blocks COX2?
cecoxib
What is the role of TXA2
inc platelet aggregation
inc vascular tone
What is the function of LTB4?
neutrophil chemotactic
“neutrophils arrive B4 the others”
What luekotrienes inc bronchial tone
LTC, D, E4
How does acetaminophen differ from NSAIDs?
NOT antiinflammatory
inactivated peripherally
How does aspirin affect PT/ PTT?
it does NOT
it inc bleeding time however by inhibiting TXA2 synth
Describe what the different doses of acetaminophen are good for:
- low
- intermediate
- high
low - antiplatelet
medium - antipyretic, analgesic
high - anti inflammatory
What cranial nerve does aspirin have an effect on?
CNVIII - tinnitus
What is misoprostol?
analog of PGE1 used to treat NSAID induced ulcers
What other drug blocks PGE1? Use?
alprostadil - mantains patency of PDA
What drug is used to close a patent PDA?
indomethacin
What are the s/e of celecoxib
thrombosis - inhibits endothelial function
sulfa allergy!!!
MOA of bisphosphonates?
bind hydroxyapetite in bone - inhibit osteoclasts
What is teriparatide?
recombinant PTH analog - inhibits osteoblasts
What do you give in asprin hypersensitivity
montelukast
MOA of allopurinol
inhibits XO - dec purine metabolism
What drug concentrations are inc with allopurinol use
azathioprine
6 MP
MOA of probenecid
inhibits reabsorption of uric acid in PCT
What does probenecid block the secretion of
penicillins, cephalosporins, fluoroquinolones
MOA of colchine
prevents tubulin polym –I PMN chemotaxis
What med is contraindicated in Gout?
aspirin - depresses uric acid clearance
MOA of etanercept?
fusion of TNF alpha + IgG Fc
etanerCEPT is a TNF decoy reCEPTor
What are the anti TNF alpha monoclonal abs?
infliximab
adalimumab
What RA drugs cant be given in G6PD
hydrochloroquine
sulfasalazine