Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/29/2025

Management of Chronic Low Back Pain

Introduction to Gabapentinoids

  • Gabapentinoids are specifically effective only for radicular/sciatic pain, not for chronic axial low back pain, as stated by the American College of Physicians 1, 2, 3
  • The American College of Physicians recommends against using gabapentinoids for chronic low back pain without radiculopathy due to the lack of benefit and significant risk of adverse effects 1, 2, 3

Alternative Therapeutic Options

  • Antidepressants, such as amitriptyline, have demonstrated moderate efficacy for chronic low back pain, according to the American College of Physicians, with higher-quality evidence 2, 4
  • Duloxetine has shown modest improvement in pain intensity and function compared to placebo, as recommended by the American College of Physicians 4
  • Nonsteroidal anti-inflammatory drugs (NSAIDs) are recommended as first-line treatment for short-term pain relief, according to the American College of Physicians 4

Dose Adjustment for Renal Impairment

  • The American College of Physicians recommends adjusting the dose of gabapentin in patients with moderate renal impairment (eGFR 37-50 mL/min) to avoid accumulation and toxicity 1, 2, 3

Clinical Decision Algorithm

  • The American College of Physicians recommends re-evaluating the nature of the pain to determine if there is a radicular component, and if so, gabapentin may be considered with strict renal adjustment 2, 4
  • For chronic axial low back pain without radiculopathy, the American College of Physicians recommends stopping pregabalin and switching to an antidepressant or duloxetine 4