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Title: Naldemedine  
Author: World Heritage Encyclopedia
Language: English
Subject: List of opioids, Kobret, 6β-Naltrexol-d4, Hemorphin, Naloxonazine
Publisher: World Heritage Encyclopedia


Systematic (IUPAC) name
Clinical data
Legal status
Routes Oral
CAS number
1345728-04-2 (tosylate)
ATC code None
Chemical data
Formula C32H34N4O6 
Mol. mass 570.63556 g/mol

Naldemedine (INN, USAN; S-297,995) is a peripherally-selective μ-opioid receptor antagonist under development by Shionogi for the treatment of opioid-induced adverse effects including constipation, nausea, and vomiting.[1][2][3] Clinical studies have thus far found it to possess statistically significant effectiveness for these indications and to be generally well-tolerated with predominantly mild to moderate gastrointestinal side effects.[2] No effects indicative of central opioid withdrawal or impact on the analgesic or mydriatic effects of co-administered opioids have been observed.[1] As of July 2014, naldemedine is in phase III clinical trials in the United States and Japan.

See also


  1. ^ a b De Sarro, Giovambattista; Kelly S. Sprawls; Egilius L.H. Spierings; Dustin Tran (2012-03-07). "Drugs in Development for Opioid-Induced Constipation". In Catto-Smith G., Anthony. Constipation - Causes, Diagnosis and Treatment. p. 7.  
  2. ^ a b Shionogi (2009-03-27). "Research and Development at Shionogi (as of March 2009)" (PDF). Retrieved 2012-05-12. 
  3. ^ Nagase H, Fujii H (2011). "Opioids in preclinical and clinical trials". Topics in Current Chemistry 299: 29–62.  

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