Blockade of intra-articular adrenergic receptors increases analgesic demands for pain relief after knee surgery

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Practice Guidelines for Acute Pain Management in the Perioperative Setting

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Immune cell-derived beta-endorphin. Production, release, and control of inflammatory pain in rats.

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Local analgesic effect of endogenous opioid peptides

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No tolerance to peripheral morphine analgesia in presence of opioid expression in inflamed synovia.

Christoph Stein, M Pflüger, Alexander Yassouridis et al. · Journal of Clinical Investigation · 1996 · 193 citations · Full text

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