• B S Galer, M Rowbotham, J Perander, A Devers, and E Friedman.
• Department of Pain Medicine and Palliative Care, Beth Israel Medical Center, New York, NY 10003, USA.
• J Pain Symptom Manage. 2000 Apr 1;19(4):287-94.

AbstractSports-related soft tissue injuries, such as sprains, strains, and contusions, are a common painful condition. Current treatment includes oral nonsteroidal anti-inflammatory drugs (NSAIDs), which have a high incidence of intolerable gastrointestinal side effects. Topically applied drugs have the potential to act locally in the soft tissues without systemic effects. This study assessed the efficacy and safety of topical diclofenac (NSAID) patch applied directly to the painful injury site for the treatment of acute minor sports injury pain. Adult subjects (N = 222) were recruited from two communities for a multicenter, randomized, placebo-controlled, parallel design study. All subjects had suffered a painful minor sports injury within the prior 72 hours of study entry. Either a diclofenac epolamine or placebo topical patch was applied directly to the skin overlying the painful injured site twice daily for 2 weeks. Measures of pain intensity were performed in a daily diary and at clinic visits on days 3, 7, and 14. Diclofenac patch was superior to placebo patch in relieving pain. Statistical significance was seen on clinic days 3 (P = 0.036) and 14 (P = 0. 048), as well as the daily diary pain ratings at days 3, 7, and 14 (P < or =0.044). No statistically significant differences were seen in any safety or side-effect measures with the diclofenac patch as compared to the placebo patch. Diclofenac epolamine patch is an effective and safe pain reliever for treatment of minor sports injury pain. The advantages of this novel therapy include its ease of use and lack of systemic side effects.

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