How many capsules of 0.1g Levofloxacin to take at one time is related to the type of infection, and there are also differences between children and adults, so you can’t generalize. Levofloxacin is one of the quinolones, which can treat urinary system, otorhinolaryngology, ophthalmology, dermatology infections caused by sensitive bacteria, reproductive system, respiratory system, skin and soft tissues, urethritis due to Chlamydia trachomatis, intestinal infections and so on. 0.1g levofloxacin hydrochloride (capsule), the dosage varies for different types of infections, and the size of the dosage depends on the actual situation of the patient, such as for the treatment of community-acquired pneumonia, 5 capsules each time, once a day. For uncomplicated urinary tract infections, 2 capsules each time, once a day. For complicated skin and soft skin tissue infections, 7 capsules once daily. Specific use should follow the doctor’s instructions. Adverse reactions to levofloxacin include abdominal discomfort or pain, diarrhea, nausea or vomiting, mental abnormality, agitation, confusion, hallucinations, and tremors. Emergency has hypersensitivity to quinolones, and is contraindicated in patients under 18 years of age. The above drugs need to be used under the guidance of a doctor, the specific treatment program, need to be guided by a doctor in order to better treat the disease.