ISSN:
1432-1041
Schlagwort(e):
oxazepam
;
oxazepam glucuronide
;
placental transfer
;
fetal drug level
;
pregnancy
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
,
Medizin
Notizen:
Summary Six women, 13 to 16 weeks pregnant, and 12 women at 38 to 40 weeks gestation, received oral oxazepam about 12 h before legal abortion, by hysterotomy in the former and before elective caesarean section in the latter group. The concentrations of free and conjugated oxazepam in maternal and fetal plasma were determined by gas-liquid chromatography. In early pregnancy the mean ratio between the plasma concentration of total (free + conjugated) drug in the umbilical cord and a maternal vein was 0.6, whereas in late pregnancy the ratio vein was 1.1. Both in early and late pregnancy, the free and glucuronide conjugate of oxazepam were found in the fetus at concentrations which indicated transplacental passage of the parent drug and its metabolite. There was great interindividual variation in the plasma levels both of free and conjugated oxazepam.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00625804
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