In the wake of Walmart’s policy of restricting opioid prescriptions in all US Walmart and Sam’s Club stores to a seven-day supply, the American Medical Association issued a letter to Walmart, Inc. president, Doug McMillon. The letter outlines three main concerns with the new policy: improper application of CDC guidelines, questions remaining in the new policy and the practice of reducing supply without a therapeutic triad to guide clinical decisions instead. Read the AMA letter.