Human-like monoclonal antibody IgG 2 that is used for treatment of severe of Osteoporosis and other disorders characterized by lost of bone mass. At latest update, relevant published information on excretion into breast milk were not found. Because of a high molecular weight, excretion into breast milk in significant amount is highly unlikely. A low oral bioavailability makes absorption from the breast milk into infant's plasma to be seemingly nil or scanty, except for premature infants and in early post-natal period in which an increased absorption may occur.