PURPOSE: A pharmaceutical composition containing an extract of mixed natural drugs is provided which has inhibition effect on proliferation of osteoblast and osteoclast is provided . It is effectively used in prevention and treatment of osteoporosis and bone degenerative diseases, and also used as a health supplementary food. CONSTITUTION: The pharmaceutical composition contains a water, alcoholic or aqueous alcoholic extract of mixed drugs selected from the group consisting of (a)Glycyrrhizae Radix, Astragali Radix, Fructus Jujubae, Lonicera japonica Thunb, Fructus Lycii, Cortex Eucommiae and Cynanchi Wilfordi Radix, (b)Glycine Semen Nigra, Rhynchosia nulubilis Semen, Canavalia gladiata DC. and Dolichoris Semen and (c)Cimicifugae Rhizoma, Fructus Arctii, Folium Mori, Radix Puerariae, Radix Bupleuri, Folium Perillae, Herba Agastachis and Cinnamomi Ramulus.
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