Phosphates are used as a laxative and to clean the bowel before medical examinations.They base their action on the little or zero amount which is absorbed (Nice 2000), causing water to escape from the intestine and severe diarrhea.Keep this in mind in order to drink as much as needed and avoid dehydration of the nursing mother who is already producing about 1 litre of liquid in the form of milk a day. Since the last update, we have not found published data on its excretion in breast milk. Both sodium and phosphate are normal components of the body and are found in breast milk at concentrations different to plasma (Allen 1991). Temporary increases in plasma phosphate levels have been observed after the administration of sodium phosphate enema (Salix 2009, Ehrenpreis 2009). It is not known whether this may affect the concentration of phosphate in breast milk, but it is believed that the variation is minimal, temporary and does not have clinical repercussions in the infant. Expert authors consider phosphate-based laxatives compatible with breastfeeding (Nice 2000).