Levofloxacin hydrochloride, 2 times a day, 0.2 g. It can also be taken once a day, 0.4 g. This may be more stimulating to the stomach and may easily lead to nausea and vomiting. Levofloxacin hydrochloride, mainly for the treatment of urinary tract infection drugs, high concentration in the urinary tract, good effect, can quickly improve the symptoms of frequent, urgent and painful urination. If the function of gastrointestinal tract is good, you can take it before meals. If the function of the gastrointestinal tract is not good, it is recommended to take it after meals to reduce the stimulation of the gastrointestinal tract. During the period of taking the medicine, it is recommended to drink more water and urinate more often to promote the excretion of inflammation and achieve better treatment effect.