Clopidogrel is an antiplatelet drug that works by blocking P2Y12 receptors on platelets, which prevents them from clumping together and forming clots. This is particularly useful in pets with heart diseases like HCM or canine immune-mediated hemolytic anemia (IMHA), where the risk of thromboembolism is high. Unlike anticoagulants, which prevent clotting in veins, clopidogrel targets arterial clots. This makes it an essential treatment for pets prone to emboli due to cardiac issues. Hero Veterinary recommends monitoring pets closely when starting therapy, as the full effects of the medication typically take 5-7 days to become evident.

Pet heart clot prevention medication is primarily used for animals with severe heart disease or conditions that increase the risk of blood clots, such as feline hypertrophic cardiomyopathy (HCM) or certain canine heart diseases. These medications work by preventing platelets from clumping together to form, or reducing the risk of, dangerous clots (thromboembolism).