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Subjects suffering from anxiety during examinations often take drugs with considerable side effects. As alternative, homeopathic preparations virtually lack side effects in general. However, clinical efficacy has to be demonstrated. This experimental series was initiated to provide evidence, that Calmvalera Hevert tablets, marketed for treatment of nervous restlessness and better coping with stress, have an influence on brain electric activity. In order to test this, a new clinical design was used: “EnkephaloVision”. It consists of the combination of quantitative EEG recording with time epochs of 364 ms (Neurocode-Tracking) with conventional Eye-Tracking. Seventeen channels of EEG and one channel EOG were recorded. After frequency analysis (FFT) current source density was calculated. Recording was performed in the presence of a video clip, which contained several different cognitive and emotional challenges in series. Twenty-four male and female subjects having a score >60 in an anxiety questionnaire (Prufungsangstfragebogen PAF-S) were recruited to participate. A correlation between the Hamilton anxiety score and spectral alpha1 power during the recording condition “eyes open” before drug intake was detected. Spectral power was averaged including Cz, F3 and F4 electrode positions. Audiovisual challenges induced spectral changes with respect to delta, theta and beta power, not in the alpha ranges, to a different but statistically significant degree. Intake of Calmvalera Hevert tablets resulted in statistically significant increases of alpha1 and alpha2 spectral power during most of the recording conditions within the left hemisphere. Increases of alpha activity have been related to relaxation and calmness as reported in the literature. Discriminant analysis of the whole data set revealed a clear difference between verum and placebo and a projection of the data into the vicinity of other plant-derived calming preparations. Performance of psychometric tasks was not disturbed. Efficacy of Calmvalera Hevert tablets points to active molecules contained due to low triturations (D2 - D8).

journal of behavioral and brain science

Psychophysiological Effectiveness of Calmvalera Hevert Tablets as Measured by EnkephaloVision in Anxious Subjects during Audio-Visual Cognitive and Emotional Challenges: A Double-Blind, Randomized, Placebo-Controlled, 2-Armed, Phase IV Study in Parallel Design