common cardiovascular drugs Flashcards
what are the types of anticholesterol drugs and what are their side effects?
- statins eg simvastatin, blocks HMG CoA reductase and is used in hypercholesterolaemia, diabetes etc. side effects = myopahty, rhabdomyolysis (renal failure)
- fibrates eg bezafibrate. Used in hypertriglyceridaemia, low HDL cholesterol
how do anticholesterol drugs work?
By inhibiting the binding of PCSK9 to LDLR, PCSK9
inhibitor increases the number of LDLRs available to clear
LDL, thereby lowering LDL-C levels
what bp is hypertension diagnosed at?
130/80 mmHg
what are the anti hypertensive drugs?
Alpha blockers
Beta blockers
Calcium antagonists
Thiazide Diuretics
what are Diuretics?
- thiazide diuretics eg bendrofluazide, sued in hypertension
- loop diuretics, strong eg furosemide and used in haeart failure
side effects are
- hyperglycaemia (tired)
- increased uric acid
- impotence
what are beta blockers?
- block b1 and . b2 receptors
1. cardioselective b blockers, only block b1, eg antenolol, bisoprolol, used in angina, acute coronary syndrome, MI
2. nonselectve B blockers, block b1 and b2, eg propranolol, used in migraine
side effects - asthma - tired - worsen heart failure symptoms cold peripheries
what are calcium antagonists
- dihydropyridines eg amoldipine, used in hypertension and angina
side effect : ankle oedema - rate limiting calcium antagonists eg verapamil, used in hypertension and angina, avoid used with beta blockers
what are angiotensin converting enzyme inhibitors?
- block angiotensin 1 becoming angiotnesin 2 eg lisinopril
- used in hypertenison and heart failure
- side effects: cough, renal dysfunction, never use in pregnancy induce hypertension
what are angiotensin receptor blockers?
- block angiotensin 2 receptors eg losartan
- used in hypertenion and heart failure
- side effects: renal dysfunction, no cough
what are alpha blockers?
- block a adrenoceptrs to cause vasodilation
- used in hypertension and prostatic hypertrophy eg doxazosin
side effects = postural hypotension
what are mineralcorticoid antagonists?
- clock adosterone receptos
- used in heart fialure and resistant hypertension eg spironolactone
side effects - gynaecomastia, renal impairement
what are the common anti anginal drugs?
vasodilators - nitrates, calcium antagonists, nucorandil
slow heart rate - beta blockers, calcium antagonists, ivabradine
metbaolic modulator - ranolazine
what are nitrates?
- venodilators eg isosorbide monoritrate
used in angina and acute heart attack
side effects - headache, hypotension
what is nicorandil?
K ATP channel activator
side effects - headache, mouth/GI ulcers
what is ivabradine?
- If channel modulator in the sinus node
- slow HR only in sinus rhythm
- does not work in atrial fibirllation
- altered visual disturbance