Which drug is commonly used for the prevention of heart attacks?

Aspirin is commonly used for the prevention of heart attacks due to its antiplatelet properties. It works by inhibiting the enzyme cyclooxygenase, which leads to a decrease in the production of thromboxane A2, a substance that promotes platelet aggregation. By reducing the ability of platelets to clump together, aspirin helps to prevent the formation of clots that could block coronary arteries and lead to heart attacks.

Additionally, aspirin is often recommended for individuals at high risk of cardiovascular events, as it can help maintain blood flow and reduce the likelihood of ischemic events. This preventive measure is especially beneficial for those with a history of heart disease, prior heart attacks, or other significant risk factors such as diabetes or high blood pressure.

In contrast, while ibuprofen and naproxen are both nonsteroidal anti-inflammatory drugs (NSAIDs) that can alleviate pain and reduce inflammation, they do not possess the same antiplatelet effects as aspirin. Acetaminophen, primarily used as a pain reliever and fever reducer, also does not have the ability to prevent blood clot formation. Therefore, aspirin is the most recognized and widely recommended medication specifically for heart attack prevention among the options provided.