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Pain Res Treat. 2011;2011:365625. doi: 10.1155/2011/365625. Epub 2011 Mar 7.

Arnica/Hydroxyethyl salicylate combination spray for ankle distortion: a four-arm randomised double-blind study.

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  • 1Clinics for Sports Medicine and Rehabilitation, 2nd Medical Faculty of the Charles University Prague, V Úvalu 84, 15006 Prague 5, Czech Republic.

Abstract

570 patients with acute ankle joint distortion were randomized to four treatment groups: a combination spray of arnica tincture and hydroxyethyl salicylate (HES; group A, n = 228), arnica (B, n = 57), HES (C, n = 228), and placebo (D, n = 57). The medication was applied 4-5 times daily for 10 days. Efficacy was assessed on day 3-4 by evaluating pain on motion on a visual analogue scale (VAS). Pain improvement in group A was significantly superior over groups B-D (t-test with unadjusted baseline values, P < 4 × 10(-7) and ANCOVA after adjustment, P < 5 × 10(-11)) and approximately corresponded to the cumulative effect of the single constituents (12.1, 7.5, and 18.7 mm VAS for A versus B, A versus C, and A versus D; 95% CI 8.0-16.2, 4.7-10.4, and 14.8-22.5 mm). The combination is justified by the additive effects of the single active constituents.

PMID:
22110924
[PubMed]
PMCID:
PMC3195812
Free PMC Article
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