cardiovascular system drugs Flashcards
B agonists:
isoproterenol* most potent
epi- use for COMPLETE av block
norepi
dopamine
phosphodiester inhibitors
aminophylline, caffeine
what is used in refractory cases & ionotropic effect on contractility and rate VIA camp
glucagon
what increases contractility
calcium salsts
what increases heart rate
atropine
what is a positive inotrope?
increases contractility
which inotrope is used in Congest Heart failure or atrial arrythmias
digitalis
what inoptrope at lose dose is used for tissue perfussion thats good for shock txt
dopamine
dobutamine has no perfussion
what vasodilators are used for Cong heart failure, hypertension and progressive renale failure
ACE inhibitors captopril enalopril *IV only, slower onset long duration lisinopril benazepril
what is used for arteriolar vasodilation
hydralizine
what is used for emergency vasodilation
nitrates
- prazosin
- na nitroprusside
- nitroglycerin
what are the two inodilators?
- phosphodiesterase inhibitors
- pimobendan (vetmedin)
what does pimobendan (vetmedin) do?
increase cardiac contractility and causes vasodil by inhibit PDEIII and sensitives troponin without actually increases inctracellular calcium
- txt CHF dog, adjuct therapy in DCM, CVD
safter than digitalsi
what b Blocker is used only in moderate/early heart failure + inhibn RAS and balanced vasodilator
carvedilol..blocks vasoconstriction..nonselective B/a1 blocker
what are class 1 tachyarrhythimas
sodium channel blockers (ventricular arrhythmias)