Could common blood pressure drug fix opioid pain problem?

This study tested whether adding the blood pressure medication guanfacine to standard opioid treatment could reduce a specific side effect where opioids actually make people more sensitive to pain over time. It involved 120 adults with chronic back or neck pain who were already taking stable, moderate-to-high doses of opioids. Researchers used specialized pain sensitivity tests to see if the combination provided better pain control than opioids alone.