WDEF News 12Express Scripts to limit opioid prescriptionsWDEF News 12But the new program from Express Scripts (ESRX) is drawing criticism from the American Medical Association, the largest association of physicians and medical students in the U.S., which believes treatment plans should be left to doctors and their patients.Seven things to know about Express Scripts' plan to limit opioidsModernMedicineExpress Scripts to limit opioids for first time users: 4 things to knowBecker's Hospital Reviewall 27 news articles »