Byfugium is the trade name, generic name Moxifloxacin, how long must be taken to stop there is no uniform time, to be taken under the guidance of a physician, most patients with a treatment course of 1 to 2 weeks. Moxifloxacin is the fourth generation of quinolone antibiotics, antibacterial effect is relatively strong, on Streptococcus pneumoniae, Staphylococcus aureus and many other bacteria have antibacterial effect, can be used for community-acquired pneumonia treatment, skin, intestinal, urinary tract infections also have a role. The exact course of moxifloxacin is not clearly defined, and most patients are treated for 1 to 2 weeks. If it is not effective, consider other infections and perform drug sensitivity tests. For some patients with severe diseases, the duration of oral administration can be appropriately prolonged, but the specific duration of administration should be in accordance with the doctor’s instructions. Adverse reactions of Moxifloxacin include sensory confusion, numbness, dizziness, anxiety, joint pain, etc. It is contraindicated in patients who are allergic to the drug components, patients under 18 years of age, pregnant and lactating women, and patients with epilepsy. Oral moxifloxacin must be taken in accordance with the doctor’s instructions and avoid taking it for a long period of time to avoid adverse reactions and secondary infections.