Most cough - medicines in Vietnam were extracted from Ivy leaves because of its 5 main active components, in which 4 Saponins included Hederacoside C (predominance), α-Hederin, Hederacoside D, Hederasaponin B are responsible for eliminating congestion (breaking up the phlegm and mucus) and Flavonoid: Kaempferol 3-rutinoside plays the role of reducing inflammations [1].