FDA expands use of Salix/Progenics constipation drug Relistor

The FDA has given Salix Pharmaceuticals and Progenics Pharmaceuticals the go-ahead to market their subcutaneous injectable drug Relistor (methylnaltrexone) for opioid-induced constipation (OIC) in patients with chronic non-cancer pain.

The FDA has given Salix Pharmaceuticals and Progenics Pharmaceuticals the go-ahead to market their subcutaneous injectable drug Relistor (methylnaltrexone) for opioid-induced constipation (OIC) in patients with chronic non-cancer pain.

An estimated 27 million US patients take opioids for chronic pain. But patients taking those drugs are often plagued by constipation.

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