Objectives : This study was intended to establish for medical treatment range of Ojeoksan and to help extending application of medical insurance through prescriptive research. Methods : We analyzed "Dongeuibogam", "Taepyeonghaeminhwajegukbang" and other books Result : 1. composition of Ojeoksan in "Dongeuibogam" is same as in "Gogeumeuigam" 2. Ojeoksan is composed of five kinds of basic prescripitions; Er Chen Tang, Ping Wei San, Ma Huang Tang, Si Wu Tang etc. and it used for five pathological factors; cold, energy, eating, phlegm, blood. 3. Property of Ojeoksan is warm so it can be used for any cold diseases. 4. Ojeoksan is used for 16 kinds of diseases including chest pain, abdominal pain etc. Conclusion : Ojeoksan can be used for cardiovascular disorders and Ojeoksan is possible to apply or to extend medical insurance coverage.