申请人:SUNBIO INC.
公开号:US20140155457A1
公开(公告)日:2014-06-05
Provided is a method of relieving, improving, preventing or treating xerostomia including applying an oral cavity composition including a polyethylene glycol (PEG) derivative whose reactor is modified to form a covalent bond with an epithelial cell of the oral cavity. An oral moisturizing effect and moisture persistency are increased and the method is effective against xerostomia due to aging or disease.