Safety in Lactation: Cephalosporins, carbapenems and other beta-lactams

Although unlikely to occur, monitor infant for gastro-intestinal disturbances and oral candida infection, especially if given intravenously, in high doses, or for prolonged periods.
There is also a theoretical risk of hypersensitivity. There is less information with third generation cephalosporins, carbapenems, and aztreonam. Third generation cephalosporins also have greater potential to alter the gut flora.
Choice of drug and alternatives may be directed by local antimicrobial policy.