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妊娠是一个特殊时期,母体与胎儿系同一个环境中两个紧密相联的独立个体,其生理反应和药物的敏感性有很大差异。因胎儿许多器官尚未发育成熟,主要依靠胎盘而不是依靠胎儿自己的器官去获取必要的营养物质和排泄代谢产物。当药物在胎儿母体出现时,由于胎儿对母体的这种依赖关系,势必影响胎儿的生长和发育。妊娠前3个月是胚胎组织的发育期,肢体和器官正在形成,对一些致
Pregnancy is a special period in which maternal and fetus are two closely related and independent individuals in the same environment. Their physiological responses and drug sensitivity are quite different. Because many organs of the fetus have not yet mature, mainly rely on the placenta rather than rely on the fetus’s own organs to obtain the necessary nutrients and excreted metabolites. When the drug appears in the fetal maternal, due to the fetus on the mother of this dependence, bound to affect fetal growth and development. 3 months before pregnancy is the development of embryonic tissue, limbs and organs are forming, to some