In one study by Reid et al in the Journal of General Internal Medicine, investigators sought to define the opioid medication prescribing habits for non-cancer pain in 2 separate primary care settings. When using short acting opioids, 50 out of 50 patients at one center received a combination medication – either acetaminophen with oxycodone or acetaminophen with codeine. At another center 38 of 48 received combination therapy while 10 patients received other—most likely combination...