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See the DrugPatentWatch profile for aspirin
What makes aspirin different from ibuprofen or acetaminophen? Aspirin blocks COX-1 and COX-2 enzymes and irreversibly disables platelets, giving it anti-clotting effects the other two drugs lack. Why does that matter for heart patients? Low-dose aspirin is still used for secondary prevention after heart attack or stroke because the platelet effect lasts for the life of each platelet, about seven to ten days. Can you take aspirin instead of ibuprofen for everyday aches? For simple pain or fever, most people do better with ibuprofen or acetaminophen; aspirin irritates the stomach lining more and raises bleeding risk. How long does the blood-thinning effect last after you stop? Once you stop aspirin, new platelets form and clotting function returns within seven to ten days, which matters before surgery or dental work. What about patent or generic status today? Aspirin lost patent protection decades ago and is sold worldwide as a low-cost generic, while newer NSAIDs and acetaminophen formulations still carry brand protections on specific delivery systems [1]. [1] DrugPatentWatch.com
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