In general, children occasionally take a Norfloxacin does not matter, stop using the drug can be; if the dose is too large, rash, nausea and other discomforts in time to consult a doctor. Norfloxacin is a quinolone antibiotic, a broad-spectrum antimicrobial drug commonly used in clinical practice, and can be used for urinary tract infections, gonorrhea, intestinal infections and other diseases caused by sensitive bacteria such as Escherichia coli and Klebsiella pneumoniae. The drug is not recommended for people under 18 years of age because it may cause joint lesions. It does not matter if the drug is mistakenly taken by children, it is enough to stop using the drug in time. If the dose is too large, and symptoms of adverse reactions such as abdominal pain, diarrhea, rash, itchy skin, mental abnormalities, hematuria, fever occur after using the drug, it is recommended to go to the hospital. The use of the drug is prohibited for people under 18 years of age, drug allergy, severe renal impairment, breastfeeding and pregnant women. Norfloxacin needs to be used under the guidance of a clinician, it is recommended to go to the hospital in time.