Ibuprofen Plus Acetaminophen Versus Ibuprofen Alone for Acute Low Back Pain: An Emergency Department-based Randomized
Benjamin W Friedman1, Eddie Irizarry1, Andrew Chertoff1
1From the, Department of Emergency Medicine, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY.
Summary
Adding acetaminophen to ibuprofen does not improve outcomes for acute low back pain (LBP) patients treated in the emergency department. This study found no significant difference in pain or function one week after discharge for patients receiving both medications versus ibuprofen alone.
Area of Science:
- Emergency Medicine
- Pain Management
- Pharmacology
Background:
- Low back pain (LBP) is a common condition often treated with nonsteroidal anti-inflammatory drugs (NSAIDs).
- Many patients experience persistent symptoms despite NSAID treatment.
- The efficacy of combining acetaminophen with ibuprofen for acute LBP requires further investigation.
Purpose of the Study:
- To compare pain and functional outcomes in emergency department (ED) patients with acute LBP.
- To evaluate the effectiveness of adding acetaminophen to ibuprofen compared to ibuprofen alone.
- To assess outcomes one week after ED discharge.
Main Methods:
- A randomized, double-blind study was conducted in two urban EDs.
- Eligible patients had acute, nontraumatic, nonradicular LBP of no more than two weeks' duration and significant functional impairment (Roland Morris Disability Questionnaire score > 5).
- Patients received either ibuprofen plus acetaminophen or ibuprofen plus placebo for one week.
Main Results:
- A total of 120 patients were randomized.
- No significant difference in functional improvement (Roland Morris Disability Questionnaire) was observed between the ibuprofen plus acetaminophen group (11.1 ± 10.7) and the ibuprofen plus placebo group (11.9 ± 9.7) at one week.
- The proportion of patients reporting moderate or severe pain at one week was similar in both groups (28%).
Conclusions:
- Adding acetaminophen to ibuprofen does not improve functional outcomes or reduce pain intensity in ED patients with acute, nontraumatic, nonradicular LBP within one week.
- Standard treatment with ibuprofen may be sufficient for this patient population.
- Further research could explore longer-term outcomes or alternative treatment strategies.


