SurrenderHouseMag

ain relievers are supposed to relieve pain. It sounds simple enough, but new research suggests a common pain medication may actually be prolonging chronic pain. P Prolonging the Study suggests painkillers may be having the opposite effect in the long run Pain

“We were surprised that morphine was able to induce these really long-lasting changes,” says Dr. Peter Grace, the study’s lead author. Dr. Grace says the cause of the chronic pain in- crease has to do with cells that form part of the immune system. He says if those areas could be isolated or their effects reduced, the resulting pain may not be as great. “If it does turn out to be a relevant issue to patients, then what our study suggests is that targeting the immune system may be the key to avoiding these kinds of effects,” Dr. Grace says. “Opioids could essentially work better if we could shut down the immune system in the spinal cord.” The team’s research only looked at spinal cord injuries and morphine, and did not study other opioids that are commonly prescribed to pa- tients experiencing pain. But he said it’s likely drugs like Vicodin or OxyContin could affect other parts of the body in a similar way. “While we haven't actually tested other opioids in this particular paradigm, we predict that we would see similar effects,” Dr. Grace says.

Morphine is an opioid painkiller commonly prescribed in hospitals and clinics, and while it is effective in the short term, doctors don’t always consider the potential consequences for pain down the road. That’s why a team of researchers based out of the University of Col- orado - Boulder set out to study how morphine treatment affects chronic pain, and found some troubling results. The team, which used mice with spinal cord injuries, found that in mice not given morphine, their pain thresholds went back to normal about four to five weeks after the injury. But mice who were given morphine didn’t see their pain levels return to normal until around 10 to 11 weeks, meaning the use of morphine effectively dou- bled the length of their chronic pain.

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