This study investigates if Celebrex is as effective as tramadol hydrochloride (Ultram) for patients with chronic low back pain, when administered over a 6-week period.

Inclusion Criteria:

• The subject presents with duration of chronic low back pain of > 3 months requiring regular use of analgesics (> 4 days/week), except for acetaminophen which cannot have been the sole analgesic used.

Exclusion Criteria:

• The subject has chronic low back pain, which is neurologic in etiology (i.e., radiculopathy, neuropathy, myelopathy)