Woman!What should I do if I get pregnant after taking the medicine?Will it cause fetal malformations?

What should I do if I get pregnant after taking the medicine?

Speaking of pregnancy after medication, for expectant mothers who do not have professional knowledge, they really have a feeling of "talking about tiger color changes". Some people often come to the hospital to ask the obstetrician: "I used the medicine a few days ago, and laterIf you are pregnant, will this child have a problem? What should I do? "So after taking the medicine, I found that I was so terrible after pregnancy?

First of all, from the perspective of drug safety, the US Food and Drug Administration (FDA) divides the safety of drugs into five categories: A, B, C, D, and X.If the A -level is not large or overdue, it is safe; the B -level animal test proves that it is safe, but it is confirmed that human beings do not test, and it is generally believed that this type of drug is also safe;The fetus is harmful, but it is considered to weigh the advantages and disadvantages according to the needs of treatment; it is definitely harmful to the D and X levels, and pregnant women are banned.

Second, from the time of medication and pregnancy, 1 to 2 weeks after fertilization, the effect of drugs on the embryo is "all or none", that is, there is no effect, or the impact will cause abortion. Generally, it will not cause fetal malformation.Therefore, when you do n’t know if you take medicines before or early pregnancy, you generally do n’t have much impact on the fetus. You do n’t have to worry too much, and you do n’t have to abortion.

3 ~ 8 weeks after fertilization (that is, 5 ~ 10 weeks of menopause) is called the sensitive period of teratogenic. It is a period of differentiation of various organs of embryos. It is easily affected by external factors such as drugs and caused fetal malformations.If you have to take medicine, you must be careful and safe under the guidance of a doctor.If there is a history of taking medicine, you can conduct prenatal diagnosis (including B-ultrasound) at 16-20 weeks of pregnancy, and further understand the growth and development of the fetus and exclude fetal malformations.

Third, physiological, as we all know, there is a barrier called "placenta" between the mother and the fetus. The drug wants to enter the fetus from the mother’s blood.If the amount of solubility, the molecular weight is less than 600, even if the placenta is passed, and the large fetal liver is encountered, the "first effect" of the fetal liver will also be metabolized for many drugs.

Fourth, from the perspective of medication, if it is partially administered or used for external use, the mother’s itself is very limited, and it is almost harmful to the fetus.If it is an oral preparation, it is necessary to depend on how much the mother can absorb, and the number of administrations is combined. If the number of times is not large, the mother is also metabolized while absorbing the drug.Most drugs are relatively safe when the treatment concentration is lower than the treatment concentration.In other words, if it is not a drug with a strong side effect, it will not have a great impact on the fetus in a short period of time.If it is intravenous administration, be careful, because the intravenous administration is 100%entered the mother’s blood.

It can be seen that after the expectant mothers take the medicine, the drugs are not easy to cause damage to the fetus. Drugs need to be used in C, D, and X levels.You can also use the "first effect" of the fetus through the placenta, and there is still a certain concentration in the fetus in the fetus to cause harm to the fetus. This is theoretically a small probability event.

In summary, you find that you are pregnant after taking the medicine. Do n’t really “talk about the tiger’ s color ”and excessive nervousness.First of all, we must determine the time relationship of medication and pregnancy to determine whether the fetus will be affected by the drug. At the same time, the professional pharmacist must be consulting. The pharmacist will determine the drug to the fetusThe degree of damage, at the same time, do a good job of screening and monitoring during pregnancy.

Source: Wen Wei Po, Nursing Department

Review: Duan Yong editor: Xu Jing

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