Aspirin is a more potent inhibitor of both prostaglandin synthesis and platelet aggregation than its other salicylic derivatives due to the acetyl group on the aspirin molecule, which irreversibly inactivates cyclooxygenase via acetylation [28]. This prevents the conversion of arachidonic acid to thromboxane A(2). Platelet aggregation is inhibited for their lifespan of 7 to 10 days.
藥動學
Elimination Half Life: 20 to 60 minutes
禁忌症
Hypersensitivity to NSAIDs.
Syndrome of asthma, rhinitis, and nasal polyps; severe urticaria, angioedema, or bronchospasm may occur.