Scott JR, et al. – An inspection was performed on the effects of caffeine consumption on pain and other symptoms, in opioid–using and nonusing chronic pain patients meeting the survey criteria for fibromyalgia. A correlation was demonstrated between caffeine consumption and decreased pain and symptom severity in opioid users, but not in opioid nonusers. Hence, it was suggested that caffeine could act as an opioid adjuvant in fibromyalgia–like chronic pain patients. Its consumption, concomitant with opioid analgesics, possibly presented therapeutic advantages which were not seen with opioids or caffeine alone.