Is homoeopathic Arnica montana effective?
German researchers assessed whether Arnica montana is effective beyond placebo and identified factors which support or contradict this effectiveness. All prospective, controlled trials on the effectiveness of homoeopathic A. montana were included. Overall effectiveness was assessed by meta-analysis and meta-regression techniques. Sixty-eight comparisons from 49 clinical trials showed a significant effectiveness of homoeopathic A. montana in traumatic injuries in random effects meta-analysis but not in meta-regression models. No evidence of publication bias was found. Studies from Medline-listed journals and high-quality studies were less likely to report positive results.
