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Aspirin First

University of Pennsylvania · FDA-approved active Small molecule

Aspirin inhibits cyclooxygenase (COX) enzymes to reduce the production of prostaglandins and thromboxane, thereby decreasing inflammation and preventing platelet aggregation.

Aspirin inhibits cyclooxygenase (COX) enzymes to reduce the production of prostaglandins and thromboxane, thereby decreasing inflammation and preventing platelet aggregation. Used for Cardiovascular disease prevention (secondary prevention post-myocardial infarction or stroke), Pain and fever relief, Rheumatoid arthritis and other inflammatory conditions.

At a glance

Generic nameAspirin First
SponsorUniversity of Pennsylvania
Drug classNonsteroidal anti-inflammatory drug (NSAID); antiplatelet agent
TargetCyclooxygenase-1 (COX-1); Cyclooxygenase-2 (COX-2)
ModalitySmall molecule
Therapeutic areaCardiovascular; Pain management; Inflammation
PhaseFDA-approved

Mechanism of action

Aspirin irreversibly acetylates COX-1 and COX-2 enzymes, blocking the synthesis of prostaglandins (which mediate inflammation and pain) and thromboxane A2 (which promotes platelet clumping). This dual action makes aspirin effective both as an anti-inflammatory analgesic and as an antiplatelet agent for cardiovascular protection. At low doses, the antiplatelet effect predominates; at higher doses, anti-inflammatory effects are more pronounced.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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