Whal Myung Su is the first western medicine in Korea invented by Min Byung-ho, a bureaucracy of Chosun dynasty, in order to popularize the secret of herb medicine available only in the palace in 1897 when Chosun transferred to the Korean Empire. At that time when only decocted medicines were taken in Korean society, Whal Myung Su gained public favor because it was harmonious with the taste and physical constitution of Korean people and worked wonders for digestive problems.