NUEDEXTA (dextromethorphan hydrobromide and quinidine sulfate) by R-Pharm US is (dm) is a sigma-1 receptor agonist and an uncompetitive nmda receptor antagonist. Approved for pseudobulbar affect (pba). First approved in 2010.
Drug data last refreshed 20h ago · AI intelligence enriched 4d ago
NUEDEXTA is an oral capsule combining dextromethorphan (a sigma-1 receptor agonist and NMDA antagonist) with quinidine (a CYP2D6 inhibitor that elevates DM plasma levels) for treatment of pseudobulbar affect (PBA). PBA is a neurological condition characterized by involuntary emotional outbursts. The mechanism by which dextromethorphan produces therapeutic benefit in PBA remains incompletely understood.
Product is in post-LOE phase with declining exclusivity; commercial team is likely focused on maintaining market share against generics rather than expansion.
(DM) is a sigma-1 receptor agonist and an uncompetitive NMDA receptor antagonist. Quinidine increases plasma levels of dextromethorphan by competitively inhibiting cytochrome P450 2D6, which catalyzes a major biotransformation pathway for dextromethorphan. The mechanism by which dextromethorphan…
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The information on this page is for informational purposes only and should not be used as a substitute for professional medical advice. Drug information is sourced from FDA, DailyMed, and other government databases. Adverse event data from FAERS does not establish causation. Always consult a healthcare professional for medical decisions.
Patent cliff in less than a year — expect lifecycle management and generic defense hiring
$181M Medicare spend — this is a commercially significant brand
NUEDEXTA offers limited career growth opportunity given its post-LOE status and orphan-indication focus; roles center on defending market position and managing payer relationships rather than expansion. Working on this product develops expertise in specialty care, niche market management, and generic transition planning—valuable for career development in rare disease or market access functions.
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