Methylnaltrexone, a new peripheral mu-receptor antagonist for the prevention and treatment of opioid-induced extracerebral side effects
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Progenics Pharmaceuticals Inc and Wyeth Pharmaceuticals are developing methylnaltrexone, a micro-receptor opioid antagonist derived from naltrexone by the addition of a methyl group. The intravenous formulation of methylnaltrexone is currently in phase III cli... ...
