Whether or not you need to terminate a pregnancy that occurs while taking Irbesartan should be based on the specific duration of the medication as well as the development of the fetus. If the drug is being used in the first trimester of pregnancy, it should be stopped immediately. The effect of the drug on the fetus in the first trimester of pregnancy is small, so if there is no miscarriage or other conditions, regular prenatal checkups are usually sufficient. If taking the drug occurs after the third trimester of pregnancy, it is recommended to stop the drug immediately, and at the same time, ultrasound, amniocentesis and other related examinations need to be conducted regularly to determine whether there is any abnormality in the fetal head and kidney function. If there are fetal abnormalities, appropriate treatment measures can be taken according to medical advice to terminate the pregnancy. Irbesartan is used to treat essential hypertension, combined with hypertension in type 2 diabetic nephropathy. Adverse reactions such as nausea and vomiting may occur after administration of the drug. The safety of the drug in children is currently unknown. This medication should not be used in combination with sodium heparin and aliskiren-containing medications at the same time. This drug is contraindicated in people who are allergic to this medication or the ingredients in the formulation, in the 4th to 9th month of pregnancy, and in breastfeeding women. If pregnancy occurs while taking Irbesartan, it is necessary to take appropriate measures in time and follow the doctor’s instructions for timely prenatal checkups in order to find out how the fetus is developing.