Thermopsis extract has an expectorant effect, exerting a moderate irritating effect on the receptors of the gastric mucosa, reflexively increases the secretion of the bronchial glands. The alkaloids contained in the herb thermopsis (cytisine, methylcytisine, pachycarpine, anagirine, thermopsin, thermopsidine) have an exciting effect on the respiratory, and in high doses, on the emetic center. Licorice extract has an expectorant effect, primarily due to the presence of glycyrrhizin, which increases the secretory function of the mucous membranes of the upper respiratory tract. Potassium bromide reduces the excitability of the Central nervous system. Ammonium chloride has an expectorant, diuretic effect.