Norfloxacin, also known as haloperidol, is a relatively common antibiotic that belongs to the quinolone class of drugs, and is commonly used in capsule form. Norfloxacin is mainly used to treat infections of urinary tract, gastrointestinal tract and respiratory tract caused by gram-negative bacilli, such as urinary tract infection caused by Escherichia coli, acute gastroenteritis caused by Salmonella, pneumonia caused by Bacillus pneumoniae can be used as the drug of choice. Patients suddenly appear urinary frequency, urinary urgency, painful urination, or due to improper diet and abdominal pain, diarrhea, dilute watery stool, the patient’s condition is heavy, the onset of the disease is urgent, can not wait until the results of bacterial culture to guide the use of drugs, need doctors clinical experience in the use of drugs, norfloxacin can be the first choice, the use of drugs will often achieve very good results. The function of norfloxacin capsule: for sensitive bacteria caused by the urinary tract, intestinal tract, ear, nose and throat, gynecology, surgery and skin and other infectious diseases. It is forbidden to use if you are allergic to quinolones, and quinolones have an effect on the bone development of minors, so it is forbidden for minors under 18 years old, pregnant women and nursing mothers; in addition, it has been reported that this drug has an effect on the nervous system, so patients with central nervous system diseases and epilepsy should be used with caution, and patients with severe liver and kidney insufficiency should be used with caution.