Ethylaminopyrazine Rifaximin Tablets should not be taken with meals. The instructions for the drug clearly state that it should be taken 1 hour before meals, so patients are clinically advised to take the drug 1 hour before meals according to the instructions. This product is a compound preparation composed of rifampicin, isoniazid, pyrazinamide and ethambutol hydrochloride, which has a powerful bactericidal effect on tubercle bacilli in various growth states. Therefore, clinically the drug is suitable for intensive treatment in the first 2 months of short-course therapy for tuberculosis. There are adverse reactions such as headache, anorexia, nausea, drowsiness and rash after using the drug. It is contraindicated in people who are allergic to rifampicin, pyrazinamide, isoniazid, ethambutol hydrochloride or any excipients; in people with abnormal hepatic function, biliary obstruction, pregnant women within 3 months, patients with gout, patients with psychosis, epilepsy, diabetes mellitus with ophthalmopathy. Patients with chronic liver disease should be closely monitored during the use of the drug; treatment should be uninterrupted during the treatment period; patients with a history of gout should be checked regularly for blood uric acid during the period of taking the drug; patients should abstain from alcohol during the application of this product. If you need to use the drug, should be used under the guidance of a specialist physician, not self-medication, in order to avoid adverse reactions.