The generic name of Rifamycin is Rifamycin Sodium Injection, which is mostly injected intravenously, the drip rate should not be too fast, and its dosage is different between adults and children. 1. Adults: 0.5 g/dose, twice a day in 250 ml of 5% dextrose injection for common infections; 1 g/dose, twice a day in 500 ml of 5% dextrose injection for moderate to severe infections. If it is injected intravenously, 0.5 g/dose, 2~3 times a day, slowly. 2. Children: The dosage should be 10-30 mg/kg twice a day, or as directed by the doctor. The drug can inhibit the activity of ribonucleic acid polymerase in vivo, affecting the synthesis of ribonucleic acid as well as protein metabolism, thus having a bactericidal effect, treating tuberculosis mycobacterium infections, such as infiltrative pulmonary tuberculosis, etc. It can also be used in combination with other drugs for the treatment of severe infections of methicillin-resistant Aureobacteria, Epizootic bacteria, and Legionella refractorye, etc. The drug can also be used in conjunction with other drugs. Nausea, loss of appetite, dizziness, temporary yellowing of the sclera or skin, transient liver damage, kidney damage, tinnitus and hearing loss, and atopic dermatitis may occur after use of the drug. Please note that the drug is contraindicated in people who are allergic to the drug; in people with liver disease or liver damage. Use with caution in pregnant and lactating women. Elderly patients with biliary obstruction, hepatic insufficiency, chronic alcoholism should reduce the dosage appropriately when using the drug. If you need to use the drug patients, please be sure to strictly follow the doctor’s instructions under the guidance of the medication, do not self-medication.