Valeant Pharmaceuticals International Inc.’s new oral version of the mu-opioid receptor antagonist Relistor (methylnaltrexone) was approved by FDA for the treatment of opioid-induced constipation (OIC) in adults with chronic non-cancer pain, pitting the franchise against AstraZeneca PLC’s similar product Movantik (naloxegol).
Valeant announced the approval of its supplemental New Drug Application July 19 after market close, the same day FDA’s Dermatologic...







