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NCI Drug Dictionary


alfentanil hydrochloride 
The hydrochloride salt of alfentanil, a synthetic short-acting opioid with analgesic and local anesthesia enhancing activity. Alfentanil hydrochloride primarily binds to mu-opioid receptor, a G-protein-coupled receptor, thereby mimicking the actions of morphine, the prototypical mu receptor agonist. This agent induces anti-nociception responses mediated through inhibiting the release of various neurotransmitters such as substance P, GABA, dopamine, acetylcholine and noradrenaline; in addition, the release of vasopressin, somatostatin, insulin and glucagon are also inhibited. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
US brand name:Alfenta
Foreign brand name:Rapifen