It is a GNRH analogue that works like an inhibitor of Hypophysis Gonadotropin (LH & FSH) secretion. A continue use produces a decrease of Estradiol level to those seen during the post-menopause period. A decrease of breast milk production is possible. When used for the treatment of infertility, the anovulatory effect of breastfeeding should be taken into account, if it is done with a frequent on-demand feeding. At latest update, no relevant published data concerning excretion into breast milk were found. Its high molecular weight makes excretion into breast milk be unlikely. Also, a low oral bioavailability renders the absorption of this agent into the infant's plasma be nil or minimal.