16.12.13 Flashcards
Major effects of fibrates
reduce TGs and increase HDL
Mech of action of fibrates
activate LPL by activating PPAR alpha
reduce apoCIII synthesis
Available fibrates
clofibrate(not available)
gemfibrosil
fenofibrate
bezafibrate
Fibrate with longest half life
fenofibrate
Fibrate with maximum LDL lowering action
fenofibrate
Additional advantage of fenofibrate
uricosuric
effect of fibrates on plasma fibrinogen levels
reduces
fibrates are drugs of choice for
Hypertriglyceridemia(esp after use of protease inhibitors)
Fibrate without increased risk of myopathy
bezafibrate
fenofibrate+rosuvastatin combination
adverse effects of fibrates
GI distress elevated transaminases hypokalemia cholesterol gall stones Leukopenia decreased Hct
absorption of gemfibrosil is increased with
food
Interaction of fibrates
potentiate coumadin anticoagulants and OHA
At what level of TGs should fibrates be started
> 500mg/dl
Spectrum of activity of daptomycin
similar to vancomycin
also active against Vanco resistant enterococci and S.aureus
adverse effect of daptomycin
myopathy
datomycin is not useful for treatment of
pneumonia
surfactant inactivates it
daptomycin is eliminated
renally
mech action of daptomycin
Ca+ mediated pore formation in cellwall resulting in K+ efflux
Drug of choice for hypertensive emergencies
SNP
Mech of action of SNP
release NO
stimulate guanylyl cyclase
DOC for hypertensive emergencies in pregnancy
hydralazine
Adverse effects of SNP
cyanide toxicity in renal failure
hypothyroidism due to accumulation of thiocyanates
Dose range of SNP
0.5 ug/kg/min-10ug/kg/min
SNP is sensitive to
light