Drugs Cardio Flashcards
Example of ACE inhibitors?
lisinopril or ramipril
when are ace inhibitors used?
hypertension and heart failure
side effects of ace inhibitors?
dry cough, postural hypotension, NEVER USE IN PREGNANCY (due to fatal renal damage), renal failure
Example of ARBs and when would they be used?
losartan, hypertension and heart failure
why are beta blockers used in the treatment of stable angina?
they decrease the myocardial requirement of O2, counter the sympathetic activity associated with pain, and increase the time in diastole (decrease heart rate) which improves the perfusion of the left ventricle
what are beta blockers used to treat?
stable angina (as explained before) hypertension - reduced CO and renin release from the kidney
heart failure - surpassed the sympathetic nervous system and RAAS (triturate - start low go slow)
what is the effect of calcium channel blockers?
interact with L-Type calcium channels
these mediate:
- upstroke of the action potential in SA/AV Nodes - can reduced rate and conduction through the AV
- Phase 2 in ventricular AP - reduced force of cardiac contraction
Give an example of a calcium channel blocker.
Dihydropyridines - amlodopine
rate limiting - verapamil
side effects of calcium channel blockers
caution when even with beta blockers
headaches
constipation
what category of drugs is benzofluazide?
thiazide diuretic
uses for thiazide diuretics?
hypertension
side effects of thiazide diuretics?
impotence
hypokalaemia - leading to fatigue and arrhythmias
what category of drugs does furosemide below to?
loop diuretics
when are loop diuretics used?
heart failure
side effects of loop diuretics?
hyperglycaemia in diabetics - due to the fact that it causes K to be lost
increased uric acid - leading to gout