Colitis can take norfloxacin, norfloxacin capsules in the clinical is mainly for sensitive bacteria caused by intestinal infections, and typhoid and other Salmonella intestinal infections caused by the effect is very significant. So there are patients with colitis, according to our experience with antibiotics can use norfloxacin, for general Escherichia coli and usually Salmonella typhi infection caused by intestinal infections is very significant. But it must be noted that norfloxacin has some clinical contraindications, such as age less than 18 years, or some previous central nervous system diseases, such as epilepsy, etc., or liver and kidney insufficiency serious injury of liver and kidney function patients, we use norfloxacin must be used with caution. And for norfloxacin allergic patients is also strictly prohibited, so in general, colitis patients are allowed to use norfloxacin.