Materno-fetal cephradine transfer in pregnancy.

Cephradine, a semisynthetic cephalosporin, has widespread use. There is, however, a paucity of data on the transfer of this antibiotic in pregnancy. Studies were undertaken after an intravenous dose of 2 g of cephradine was given in two elective situations: (i) therapeutic abortion in the first trimester and (ii) elective cesarean section in late pregnancy. Blood and tissue levels of cephradine obtained showed that the antibiotic is rapidly transferred to the feto-placental unit throughout pregnancy after intravenous administration to the mother.