Cefaclor extended-release tablets can be taken in mid-pregnancy without any corresponding effect on the fetus as well as the pregnant woman herself, but it is not recommended to give the drug if you have ever had an allergy to it. Cefaclor extended-release tablets are an antibiotic, so they must be used under the guidance of a doctor. In addition, there must be corresponding clinical indications, such as the emergence of inflammatory reactions, if necessary, through laboratory tests to understand the pathogenic bacteria infection, and then give antibiotics for appropriate treatment. In the process of using cephalosporin antibiotics in accordance with the dose given by the doctor, if the clinical symptoms have significantly improved it is recommended to go to the hospital for a review to find out whether the original disease still needs to continue with the drug treatment, if not, stop the drug as soon as possible.