There are oral medicines for tuberculosis, and common oral tuberculosis medicines are isoniazid, pyrazinamide, ethambutol and so on. 1. Isoniazid: Isoniazid has antibacterial and antiseptic effects, and is mainly used in the prevention and treatment of tuberculosis. However, it should be noted that patients who are allergic to the components of this drug, abnormal liver function, and patients with epilepsy and mental illness are not recommended to use this drug. Hepatitis may occur after the use of this drug, pregnant women, lactating women, the elderly and other special groups should be used with caution. 2. Pyrazinamide: Pyrazinamide is also a drug for the treatment of tuberculosis, and is usually used in combination with other anti-tuberculosis drugs. Patients who are allergic to the components of this drug, patients with acute gout and patients with hyperuricemia are not recommended to use this drug, and pregnant women, lactating women, the elderly, infants and young children and other special groups should be used with caution. Some patients may experience joint pain, nausea, vomiting and other adverse reactions after taking it. 3. Ethambutol: This drug is mainly used for the treatment of pulmonary tuberculosis or extrapulmonary tuberculosis caused by Mycobacterium tuberculosis, and usually needs to be used in combination with other anti-tuberculosis drugs. This drug is not recommended for patients who cannot be monitored for visual adverse effects or changes in vision. Some patients may experience adverse reactions such as blurred vision, eye pain, red-green color blindness, and joint swelling and pain after taking it. Oral drugs for the treatment of tuberculosis are more, in general, the treatment of tuberculosis requires the use of a variety of drugs at the same time combined treatment, and requires a certain course of treatment, it is recommended that patients do not take the drug privately, in order to avoid failing to achieve the effect or cause other physical discomfort. Patients with tuberculosis should go to the hospital for examination as soon as possible, and the doctor will formulate a suitable drug treatment plan according to the condition.