Astra-Zeneca is about to market a drug to address opioid-induced constipation. It is called Movantik in North America and Movantig in Europe. It works by blocking the paralyzing effect of opioids in the digestive system, but has little or no effect on the pain killing/other side effects of opioids. AZ is in the process of getting the drug on insurance formularies and plans a large direct-to-consumer advertising campaign.
https://www.movantikhcp.com/
https://www.movantikhcp.com/