Dextromethorphan and ketamine potentiate the antinociceptive effects of μ- but not δ- or κ-opioid agonists in a mouse model of acute pain

Ketamine—Its Pharmacology and Therapeutic Uses

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Inhibition of Morphine Tolerance and Dependence by the NMDA Receptor Antagonist MK-801

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Sustained potentiation of NMDA receptor-mediated glutamate responses through activation of protein kinase C by a μ opioid

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Roles of mu, delta and kappa opioid receptors in spinal and supraspinal mediation of gastrointestinal transit effects and hot-plate analgesia in the mouse.

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The Symbol receptor antagonist dextromethorphan selectively reduces temporal summation of second pain in man

Donald D. Price, Jianren Mao, Hanan Frenk et al. · Pain · 1994 · 368 citations

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