Combination drug for regulating autonomic nervous system, and preparation, product, and application thereof

A combination drug for regulating the autonomic nervous system, the combination drug being composed of the two active ingredients of acidic montmorillonite and calcium hydroxide, and achieving a slow release by means of the mutual adsorption of the acidic montmorillonite in water and the calcium hydroxide, the formula thereof being 100 parts acidic montmorillonite to 0-95 parts calcium hydroxide and 0-1 part fatty acid.