The pediatric dosage of Cefaclor Dry Suspension for 7 year olds is calculated according to body weight, and each baby is differently fat or thin, so the dosage may vary greatly. Cefaclor dry suspension belongs to the second generation of cephalosporin antibiotics, applicable to the respiratory system, urinary system, ear, nose and throat and skin, soft tissue infections caused by sensitive bacteria. The medication is usually taken for no more than a week, and prolonged use of the medication can lead to bacterial dysbiosis and secondary infections. If 7-year-old children need oral cefaclor, according to their own body weight, under the guidance of a doctor to use, generally speaking, cefaclor dosage is 20mg/kg per kilogram of body weight per day, serious infections can be under the guidance of a doctor to be 40mg/kg body weight per day. The total amount should not exceed 1g a day, please follow the doctor’s instructions. The adverse reactions of this drug are mostly gastrointestinal reactions such as diarrhea, nausea, vomiting, stomach upset, etc. Allergic reactions may also occur, if allergic reactions occur, you need to stop using the drug immediately. In order to ensure the safety of the drug, it is recommended to use the drug under the guidance of a doctor.