MOA Flashcards
HCTZ
Inc Na, Cl excretion by dec reabsorption
spironolactone
Competitive aldosterone antagonist
Blocks Na/K exchange → mild/delayed diuresis
Inc Na, Cl excretion
Dec K, Mg excretion
Triamterene-HCTZ
Potassium sparing
Acts of active Na exchange for K and H → prod mild diuresis
Thiazide inc Na, Cl excretion
Chlorthalidone
Inc Na, Cl excretion by interfering w/ reabsorption
Furosemide (Lasix)
inhibiting the luminal Na-K-Cl cotransporter by binding to the chloride transport channe
Na-K-Cl loss in urine
statins
HMG-CoA reductase inhibitor
Fenofibrate
Inc lipolysis and elimination of triglyceride rich particles
Ezetimibe (Zetia)
Inhibits cholesterol absorption leading to a dec in delivery of cholesterol to the liver
Gemfibrozil
Inc lipolysis and elimination of triglyceride rich particles
Isosorbide mononitrate
NO activates guanylate cyclase → inc cGMP → dec intracellular Ca → direct relaxation of vascular smooth muscle
Nitroglycerin
NO activates guanylate cyclase → inc cGMP → dec intracellular Ca → direct relaxation of vascular smooth muscle
Digoxin
Improved Ca availability to myocardial contractile elements
Amiodarone
prolongs effective refractory period of atrial & ventricular tissue by blocking potassium conductance.
Warfarin
Prevents vit K conversion back to its active form
Impairs formation of clotting factors II, VII, IX, and X
-xabans
Factor Xa inhibitor