Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/20/2025

Diclofenac for Severe Pain Management

Efficacy and Safety

  • Topical diclofenac has shown significant benefit over placebo for pain relief, with particular effectiveness in those with severe knee osteoarthritis 1, 2
  • For patients with increased risk of gastrointestinal complications, topical diclofenac may be preferred as it has a good safety record with minimal systemic absorption 1, 2, 3
  • In elderly patients (≥75 years) and those with increased risk of renal adverse events, topical NSAIDs are preferred over oral NSAIDs 3

Clinical Applications

  • For severe acute musculoskeletal pain, diclofenac shows superior results compared to other NSAIDs like piroxicam and ibuprofen for reducing pain during motion 3
  • When topical application is preferred, diclofenac gel has shown equal efficacy to other topical NSAIDs and is particularly effective for localized severe pain 1, 2, 3