Credit: American College of Emergency Physicians
WASHINGTON — Emergency patients treated with naproxen and placebo had outcomes as good as or better than patients treated with naproxen and diazepam (trade name Valium) for acute lower back pain, according to the results of a double-blind, randomized clinical trial published last week in Annals of Emergency Medicine ("Diazepam Is No Better Than Placebo When Added to Naproxen for Acute Low Back Pain").
"Our study contributes to the growing body of literature indicating that, in general, most medications do not improve acute lower back pain," said lead study author Benjamin Friedman, MD, MS, of the Albert Einstein College of Medicine/Montefiore Health System in Bronx, New York. "One week after being discharged from the emergency department, lower back pain patients had improved equally, regardless of whether they were treated with naproxen and diazepam or naproxen and placebo. By three months after visiting the emergency department, most patients had recovered completely, regardless of what treatment they received."
Researchers randomized 114 patients who came to the emergency department with new-onset lower back pain to two groups: one group was treated with a combination of naproxen (a non-prescription, non-steroidal anti-inflammatory medication) and diazepam and the other was treated with a combination of naproxen and placebo. One week after visiting the emergency department, the diazepam group improved by 11 points on the Roland Morris Disability Questionnaire, as did the placebo group.
After one week, 31.5 percent of the diazepam patients reported moderate or severe lower back pain, while 21.8 percent of the placebo patients did. At three months, 12 percent of diazepam patients reported moderate or severe lower back pain, while 9 percent of placebo patients did. The differences are not considered clinically or statistically significant.
"Millions of patients come to the ER every year seeking relief for back pain, which can be debilitating," said Dr. Friedman. "Unfortunately, we have yet to come up with the silver bullet in pill form that helps them. If anything, we may be overmedicating these patients."
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Annals of Emergency Medicine is the peer-reviewed scientific journal for the American College of Emergency Physicians, the national medical society representing emergency medicine. ACEP is committed to advancing emergency care through continuing education, research, and public education. Headquartered in Dallas, Texas, ACEP has 53 chapters representing each state, as well as Puerto Rico and the District of Columbia. A Government Services Chapter represents emergency physicians employed by military branches and other government agencies. For more information, visit http://www.acep.org.
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