Drugs taken within one month of pregnancy have an all or nothing effect on the fetus, in addition to the type of drug taken, the dosage, and the time of day it is taken.
1. Within one month of pregnancy, i.e., within two weeks after fertilization, before and after the fertilized egg is implanted, the drugs taken orally have an all-or-nothing effect on it. All: embryo death leading to miscarriage, none: normal development without abnormalities.
2. There are several drug safety classifications for medications used during pregnancy, among which the standard designated by the U.S. Food and Drug Administration, which has the widest acceptance, classifies medications according to the degree of teratogenic risk to humans and animals, and medications are classified into five categories, A, B, C, D, and X. The higher the class, the higher the oral dose, and the longer the duration of administration, the greater the effect on the embryo.
Women who are preparing for and during pregnancy are advised to use medication with caution, use medication when indicated, avoid unnecessary use of medication, use medication under the guidance of a doctor, and consult an obstetrician promptly if pregnancy is found after using medication.