New York TimesPrescription opioids fail rigorous new test for chronic painSFGateCHICAGO (AP) — A yearlong study offers rigorous new evidence against using prescription opioids for chronic pain. In patients with stubborn back aches or hip or knee arthritis, opioids worked no better than over-the-counter drugs or other nonopioids ...Prescription opioids fail new rigorous test for chronic painWashington Postall 248 news articles »