Name two examples of platelet inhibitors.

Name two examples of platelet inhibitors.

• A. Warfarin and Heparin
• B. Dipyridamole and Ticlopidine
• C. Clopidogrel (Plavix) and Aspirin (Acetylsalicylic acid)
• D. Furosemide and Spironolactone

Answer: (C)

Platelet inhibitors prevent platelets from clumping together to form arterial clots, a key difference from anticoagulants that affect the coagulation cascade. Aspirin works by irreversibly inhibiting COX-1 in platelets, which lowers thromboxane A2 and reduces platelet activation. Clopidogrel blocks the P2Y12 ADP receptor on platelets, preventing ADP-mediated aggregation. These two drugs are classic, widely used examples of antiplatelet therapy, often employed together in dual antiplatelet regimens after coronary events or stent placement. Other options shown aren’t platelet inhibitors. Warfarin and heparin are anticoagulants that target clotting factors, not platelet function. The diuretics listed have no direct effect on platelets. Dipyridamole and ticlopidine are also platelet inhibitors, but clopidogrel and aspirin are the most commonly cited, representative examples of this class.

Platelet inhibitors prevent platelets from clumping together to form arterial clots, a key difference from anticoagulants that affect the coagulation cascade. Aspirin works by irreversibly inhibiting COX-1 in platelets, which lowers thromboxane A2 and reduces platelet activation. Clopidogrel blocks the P2Y12 ADP receptor on platelets, preventing ADP-mediated aggregation. These two drugs are classic, widely used examples of antiplatelet therapy, often employed together in dual antiplatelet regimens after coronary events or stent placement.

Other options shown aren’t platelet inhibitors. Warfarin and heparin are anticoagulants that target clotting factors, not platelet function. The diuretics listed have no direct effect on platelets. Dipyridamole and ticlopidine are also platelet inhibitors, but clopidogrel and aspirin are the most commonly cited, representative examples of this class.