Is 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat? Is 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat safe for nursing mother and child? Does 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat extracts into breast milk? Does 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat has any long term or short term side effects on infants? Can 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat influence milk supply or can 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat decrease milk supply in lactating mothers?

Be aware of the possibility of false negative results of bacterial cultures when the mother is on antibiotics.

Limited information indicates that 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat produces low levels in milk that are not expected to cause adverse effects in breastfed infants. Occasionally disruption of the infant's gastrointestinal flora, resulting in diarrhea or thrush have been reported with penicillins, but these effects have not been adequately evaluated. 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat is acceptable in nursing mothers.

1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat is rapidly converted to ampicillin. Some adverse reactions from ampicillin have been reported. An uncontrolled observation of the breastfed infants of mothers taking ampicillin noted a seeming increase in cases of diarrhea and candidiasis that was attributed to ampicillin in breastmilk.[2] In a prospective follow-up study, 5 nursing mothers reported taking ampicillin (dosage unspecified). One mother reported diarrhea in her infant. No rashes or candidiasis were reported among the exposed infants.[3] A small, controlled, prospective study had mothers monitor their infants for signs of adverse effects (furring of the tongue, feeding difficulties, changes in stool frequency and consistency, diaper rash, and skin rash). Weight change and the development of jaundice were also recorded. No statistical differences in these parameters were found between the infants of the control mothers and those of mothers taking ampicillin.[4] Naproxen possibly caused prolonged bleeding time, thrombocytopenia and acute anemia in one 7-day-old infant in a mother also taking 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat.[5] The role of 1-Ethoxycarbonyloxyethyl (2S,5R,6R)-6((R)-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptan-2-carboxylat in this reaction is unknown.