The easiest way to learn your cardiac drugs is to learn the classifications and what they do...
There are 3 terms that will help you figure out what the drugs do:
Inotropic=force of the cardiac contraction
Chronotropic= cardiac rate
Dromotropic= Cardiac conduction
OK, drugs can either increase or decrease these three things. so it is easiest to remember them.
, alot of them end in -olol for example metoprolol (lopressor), propranolol (Inderal), ect.. The are negative inotropic, negative chronotropic and negative dromotropic...SO...they decrease the force of contraction, the rate, and the conduction
Calcium Channel Blockers,
alot of these end in -ine for example: nimpdipine(Nimotop), Bepridil (Vascor) they are also negative negative negative, so they do the same things that beta blockers do. used for angina, antidysrhythmias hypertension.
Digoxin, digitoxin, they are positive inotropic, negative chronotropic, and negative dromotropic.Used for CHF, dysrhymias
end in -pril, captopril, lisinopril etc. they are block angiotension I from becoming angiotensin II, angiotensin II is a very potent vasoconstrictor,so if it is blocking it then it is going to dialate, lowering the BP. They are also Negative, negative, negative.
Those are the major ones that I know..i don't know if it will help you or not, but it made more sense to me and it helped me understand what they do a little better!! Good Luck!