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paraxanthine + aspirin + acetaminophen is a patent-pending, fixed-dose combination oral formulation developed by Plopii for the acute treatment of migraine and tension headaches. Designed as a next-generation alternative to traditional caffeine-containing analgesics (such as Excedrin), this combination replaces caffeine with its primary active metabolite, paraxanthine. Paraxanthine acts as a selective adenosine receptor antagonist to provide vasoconstriction and enhance the pain-relieving effects of the co-formulated analgesics with a significantly reduced risk of jitters, anxiety, sleep disruption, and rebound headaches. Aspirin acts as an irreversible inhibitor of cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) to reduce inflammatory prostaglandins, while acetaminophen provides central analgesic and antipyretic effects. The drug is being developed under the FDA 505(b)(2) regulatory pathway.
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