AP NEWS https://apnews.com/article/698e559e134e47e884b783dd93a6e73bClick to copyhttps://apnews.com/article/698e559e134e47e884b783dd93a6e73bClick to copyRelated topicsFor more than a decade, members of a little-known group called the Pain Care Forum have blanketed Washington with messages about prescription painkillers’ vital role in the lives of millions of Americans, creating an echo chamber that has quietly derailed efforts to curb U.S. consumption of drugs like OxyContin, Vicodin and Percocet.ADVERTISEMENTIn 2012, drugmakers and their affiliates in the forum sent a letter to U.S....…AP NEWS https://apnews.com/article/698e559e134e47e884b783dd93a6e73bClick to copyhttps://apnews.com/article/698e559e134e47e884b783dd93a6e73bClick to copyRelated topicsFor more than a decade, members of a little-known group called the Pain Care Forum have blanketed Washington with messages about prescription painkillers’ vital role in the lives of millions of Americans, creating an echo chamber that has quietly derailed efforts to curb U.S. consumption of drugs like OxyContin, Vicodin and Percocet.ADVERTISEMENTIn 2012, drugmakers and their affiliates in the forum sent a letter to U.S....WW…