Combination hydrocodone and ibuprofen versus combination oxycodone and acetaminophen in the treatment of moderate or severe acute low back pain.

Background: Introduced in 1997, the combination of hydrocodone and ibuprofen is the only fixed-dose combination analgesic containing an opioid and ibuprofen that has been approved by the US Food and Drug Administration.

Objective: This study compared the efficacy and tolerability of combination hydrocodone 7.5 mg and ibuprofen 200 mg (HC/IB) with those of combination oxycodone 5 mg and acetaminophen 325 mg (OX/AC) in the treatment of moderate or severe acute low back pain.