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Systematic review of efficacy of topical rubefacients containing salicylates for the treatment of acute and chronic pain.


ABSTRACT:

Objective

To determine the efficacy and safety of topical rubefacients containing salicylates in acute and chronic pain.

Data sources

Electronic databases and manufacturers of salicylates.

Study selection

Randomised double blind trials comparing topical rubefacients with placebo or another active treatment, in adults with acute or chronic pain, and reporting dichotomous information, around a 50% reduction in pain, and analyses at one week for acute conditions and two weeks for chronic conditions.

Data extraction

Relative benefit and number needed to treat, analysis of adverse events, and withdrawals.

Data synthesis

Three double blind placebo controlled trials had information on 182 patients with acute conditions. Topical salicylate was significantly better than placebo (relative benefit 3.6, 95% confidence interval 2.4 to 5.6; number needed to treat 2.1, 1.7 to 2.8). Six double blind placebo controlled trials had information on 429 patients with chronic conditions. Topical salicylate was significantly better than placebo (relative benefit 1.5, 1.3 to 1.9; number needed to treat 5.3, 3.6 to 10.2), but larger, more valid studies were without significant effect. Local adverse events and withdrawals were generally rare in trials that reported them.

Conclusions

Based on limited information, topically applied rubefacients containing salicylates may be efficacious in the treatment of acute pain. Trials of musculoskeletal and arthritic pain suggested moderate to poor efficacy. Adverse events were rare in studies of acute pain and poorly reported in those of chronic pain. Efficacy estimates for rubefacients are unreliable owing to a lack of good clinical trials.

SUBMITTER: Mason L 

PROVIDER: S-EPMC404501 | biostudies-literature | 2004 Apr

REPOSITORIES: biostudies-literature

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Publications

Systematic review of efficacy of topical rubefacients containing salicylates for the treatment of acute and chronic pain.

Mason Lorna L   Moore R Andrew RA   Edwards Jayne E JE   McQuay Henry J HJ   Derry Sheena S   Wiffen Philip J PJ  

BMJ (Clinical research ed.) 20040319 7446


<h4>Objective</h4>To determine the efficacy and safety of topical rubefacients containing salicylates in acute and chronic pain.<h4>Data sources</h4>Electronic databases and manufacturers of salicylates.<h4>Study selection</h4>Randomised double blind trials comparing topical rubefacients with placebo or another active treatment, in adults with acute or chronic pain, and reporting dichotomous information, around a 50% reduction in pain, and analyses at one week for acute conditions and two weeks  ...[more]

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