Epimeredinoside A extracted from Epimeredi indica root, oral pharmaceutics made up with the Epimeredi indica root extract and at least one pharmaceutical adjuvant, and preparatory method for the oral pharmaceutics. The root extract is the extracta sicca prepared by water extraction and concentration of Epimeredi indica root, and contains 0.10% to 1.50% of epimeredinoside A. The inventive pharmaceutics of Epimeredi indica root extract do not contain any hormone and progesterone is not needed to be taken to prevent a side effect after using the drug. The pharmaceutics has doubtless effect in treating female menopause.