Levofloxacin is one of the drugs used in the treatment of pulmonary tuberculosis, and can generally be chosen to be used for about 3-4 months. Levofloxacin is not the first-line drug of choice for the treatment of tuberculosis, and is generally chosen to be used in combination with levofloxacin treatment during the intensive period, and needs to be used in combination with other drugs, such as isoniazid and rifampin, and then adjusted according to the condition. Some patients may experience gastrointestinal irritation, such as nausea and vomiting, after taking it. It is also important to review liver function regularly to prevent liver damage, and to reduce the dose appropriately when used in combination with other drugs if necessary.