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Evidence summaries

Topical Nsaids for Acute Pain in Adults

Topical non-steroidal anti-inflammatory drugs (NSAIDs) diclofenac, ibuprofen, ketoprofen and piroxicam are effective for pain relief in acute musculoskeletal conditions, without systemic adverse events. Level of evidence: "A"

A Cochrane review [Abstract] 1 included 61 studies with a total of 6 951 subjects. Most compared topical NSAIDs in the form of a gel, spray, or cream with a similar topical placebo; 5311 participants were treated with a topical NSAID, 3470 with placebo, and 220 with an oral NSAID.

Formulations of topical diclofenac, ibuprofen, ketoprofen, piroxicam, and indomethacin demonstrated significantly higher rates of clinical success (more participants with at least 50% pain relief) than matching topical placebo. Benzydamine did not. Three drug and formulation combinations had NNTs for clinical success below 4. For diclofenac, the Emulgel® formulation had the lowest NNT of 1.8 (95% CI 1.5 to 2.1) in two studies using at least 50% pain intensity reduction as the outcome. Diclofenac plasters other than Flector® also had a low NNT of 3.2 (2.6 to 4.2) based on good or excellent responses in some studies. Ketoprofen gel had an NNT of 2.5 (2.0 to 3.4), from five studies in the 1980s, some with less well defined outcomes. Ibuprofen gel had an NNT of 3.9 (2.7 to 6.7) from two studies with outcomes of marked improvement or complete remission. All other drug and formulation combinations had NNT values above 4, indicating lesser efficacy.There were insufficient data to compare reliably individual topical NSAIDs with each other or the same oral NSAID.Local skin reactions were generally mild and transient, and did not differ from placebo. There were very few systemic adverse events or withdrawals due to adverse events.

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    References

    • Derry S, Moore RA, Gaskell H et al. Topical NSAIDs for acute musculoskeletal pain in adults. Cochrane Database Syst Rev 2015;6():CD007402. [PubMed]

Primary/Secondary Keywords