Rifampicin should be taken in the morning on an empty stomach for better results, in addition, when treating tuberculosis, it should be used in combination with other anti-tuberculosis drugs for better results. Rifampicin can be taken on an empty stomach 1~2 hours before breakfast, this is because a large amount of saliva and gastric acid will be produced during meals, and if rifampicin is taken at this time, it will lead to changes in the drug, making it less effective. In addition, because rifampicin is a hepatic enzyme inducer, you should avoid using it in combination with glucocorticoids and phenobarbital, and you can’t drink alcohol while taking the drug. Rifampicin is a semi-synthetic broad-spectrum antimicrobial drug of rifamycin class, which has obvious bactericidal effect on both Mycobacterium tuberculosis inside and outside the host cell and some non-tuberculosis mycobacteria (including Mycobacterium leprae, etc.), so it can be used for the treatment of various tuberculosis, which is used in combination with anti-tuberculosis drugs, such as isoniazid, pyrazinamide, etc., and can be used in the primary and secondary treatment of various tuberculosis diseases. If you need to use rifampicin, please do so under the guidance of a doctor, and do not use or stop the drug privately.