Proceedings of the Symposium “Updates of the Clinical Pharmacology of Opioids with Special Attention to Long-Acting Drugs”Immunologic Effects of Opioids in the Presence or Absence of Pain
Review articleOpen access
2005/05/01 Full-length article DOI: 10.1016/j.jpainsymman.2005.01.006
Journal: Journal of Pain and Symptom Management
AbstractOpioids are acknowledged to suppress immune functions following both acute and chronic administration; however, there appear to be differences according to the schedule of administration as well as the state of the organism. For example, whereas a single dose of morphine in the absence of pain is well known to be immune suppressive, the biologic consequences of this suppression are largely unknown. Repeated and chronic opioid ingestion in the absence of pain appears to result in significant consequences including high infectious disease prevalence. On the other hand, in the presence of acute pain, there is evidence that opioid administration in analgesic doses is protective. Much less is known regarding the immune and disease implications related to chronic opioid treatment for chronic pain states.
Request full text