The mother being invisible is an automatic consequence of the article being solely based on medical research papers, the human aspect doesnt tend to feature in such things. edited to add - because of their narrow focus and the need to anonymise patient-specific info.
As for being contra-indicted in breastfeeding women, if you are talking about Domperidone, it is unlicensed for such purposes but has been used by women in general who are trying to increase milk production.
eg:
http://www.colchesterhospital.nhs.uk/patient_information/maternity/763n4 Domperidone.pdf
If you were referring to a different drug, please give its name so I can research, cheers.