By Lesley Colvin and Blair H. Smith in The Conversation.
Chronic pain – acute pain that lasts for longer than three months – affects around one in five people in Europe. The increase in use of strong morphine-type drugs (opioids) for the treatment of chronic pain is an area of much concern, particularly in North America.
Termed an “opioid epidemic”, most developed countries have seen a major increase in opioid prescribing over the last decade or so. Our latest research assesses how good the evidence is that opioids can help chronic pain effectively, balanced against any harms they can cause.
Chronic pain very often doesn’t get better, so people can be prescribed opioids for a long time – years, or even decades. Is there evidence that opioids continue to work well to reduce chronic pain and improve quality of life? The majority of clinical trials only study opioid use for three months, so we don’t really know much about their effectiveness over the longer term.
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