Tuberculosis drugs are usually taken in the morning on an empty stomach, and the specific dosage should be strictly in accordance with the doctor’s instructions for medication. Tuberculosis is mainly treated by anti-tuberculosis chemical drugs, commonly used drugs are isoniazid, rifampicin, ethambutol, etc., usually used in the form of tonic, and taken on an empty stomach. Isoniazid is the most powerful bactericidal drug among the single anti-tuberculosis drugs, especially in the early stage, and it is usually taken on an empty stomach every morning to prevent food from affecting the absorption of isoniazid. Rifampicin has a rapid bactericidal effect on tuberculosis bacilli inside and outside macrophages, and is more effective when taken in the morning on an empty stomach or half an hour before breakfast. Ethambutol is given in combination with other antituberculosis drugs and is taken daily on an empty stomach. Some patients taking ethambutol may experience gastrointestinal reactions such as nausea, vomiting, diarrhea, etc. If gastrointestinal irritation occurs, it can be taken with food. Patients with pulmonary tuberculosis should follow the doctor’s instructions to use the medication in full dosage and course of treatment, so as not to cause disease progression. During the medication period, close monitoring of the adverse effects of the drug is required, and liver and kidney functions should be rechecked regularly. Patients who are diagnosed with tuberculosis should consult the doctor in time and actively carry out regular treatment. Follow the doctor’s instructions to take anti-tuberculosis drugs regularly and quantitatively, and try to avoid leakage, breakage and stoppage of drugs, so as to avoid serious effects.