Sundew leaves contain, apart from other substances, naphthoquinones, which are substances with spasmolytic effects. The drug is used for relieving spasms of the smooth muscle, it increases the creation of secretes and traditionally it is used for convulsive and prolonged coughs and asthma.
The root of the herb contains up to 35% of slime, which contain galactoramnozenes, glucans and arabinogalactans. The mucous substances create a protective layer of the membrane when administered orally. This protective layer suppresses coughs, eases expectoration and reduces membrane irritation.
The active substances of poppy seeds primarily contain alkaloids, which slightly relieve pain and calm the organisms. It has a soothing effect on the respiratory center.
Elderberry flowers contain, apart from other substances, flavonoids, tannins, slime, minerals and vitamin C. It has perspiration and diuretic effects on the organisms, while reducing fever and promoting expectoration.