Which medicines should not be taken by pregnant women | What medicines should not be taken by pregnant women

　　What drugs should pregnant women not take? Generally speaking, during the period of about 3 weeks starting from the day of conception (fertilization day), the medicines used during this period are generally not effective. fetus cause impact. However, the period from 2 and a half months to early 4 months of pregnancy is the period when the fetal body organs are forming. During this period, there is sometimes a risk of fetal malformation due to the amount and type of medicines taken by the pregnant woman.

　　After 4 and a half months of pregnancy when the fetal body organs are roughly formed, there is no doubt about causing malformations. However, it may affect the development of various fetal organs. After pregnancy, various systems and organs of pregnant women undergo some changes, which makes the process of many drugs in the body not only different from that during non-pregnancy, but also can reach the fetus through the placenta, affecting the fetus, or affect the newborn through milk. Therefore, in recent years, widespread attention has been paid to the use of medication in pregnant women. The impact of drugs on fetuses and newborns depends on the type, dose, duration of action, and the speed and extent of passing through the placenta, especially on the stage of fetal development and its response to the drug.

　　When giving medication to pregnant women, the effects of the medication on the fetus and newborn must be considered:

　　Teratogenicity:

　　Fetal malformations caused by medication in pregnant women mostly occur within 12 weeks of pregnancy, with the greatest impact occurring within 8 weeks of pregnancy. During this period, the fetus is in the stage of embryonic differentiation and union, and various systems have not yet been fully formed. For example, in the early pregnancy, the use of certain types of anti-pregnancy drugs (such as diazepam, chlorpromazine, etc.), certain fetal protection hormonal drugs (estrogens, etc.), and some antibiotics (chloramphenicol, anti-trichomoniasis drugs, kanamycin, etc.) may cause fetal malformations.

　　Carcinogenic:

　　It has been confirmed that diethylstilbestrol and ethylbestrol have carcinogenic effects. It has been reported that 0.0% of girls were born to women who had used diethylstilbestrol for fetal protection. 14-1. 4% may develop vaginal clear cell cancer when they grow up to the age of 12-24. In addition, it may also cause miscarriage, stillbirth and developmental malformations.

　　Developmental defects:

　　Oral tetracycline in early pregnancy may cause small limb deformities. Taking the drug after 16 weeks of pregnancy may cause dentine hypoplasia or bone development retardation, and the deciduous teeth will turn yellow.

　　Respiratory depression:

　　Morphine and pethidine can inhibit the respiratory center of newborns and even cause death; reserpine can cause nasal congestion in newborns, leading to difficulty breathing. Try not to use the above medications 1 hour before the baby is delivered.

　　Hemolysis:

　　Some newborns, especially premature birth In children, red blood cells are sensitive to the hemolytic reaction of certain drugs. Any drug that can cause damage to liver function, cause hemolysis and promote the separation of plasma protein and bilirubin can cause neonatal jaundice and cerebral jaundice. Therefore, sulfa drugs, synthetic water-soluble vitamin K and other drugs should be used with caution in the third trimester of pregnancy.

　　What drugs should pregnant women not take? New chemically synthesized drugs are constantly coming out, and according to relevant reports, there are more than 100 kinds of drugs that have an impact on the fetus. When taking medication during pregnancy, pregnant women should be taken into consideration healthy needs, and the impact on the fetus must be taken into consideration. It must be comprehensively weighed and carefully considered. Neither indiscriminate use of drugs, regardless of the effects, nor neglect of one thing and the other, and abandoning food due to choking.