The main ingredient of Tetracycline Ointment is tetracycline, which is mainly used for skin surface infections caused by sensitive gram-positive and gram-negative bacteria. Tetracycline is a broad-spectrum bacteriostatic agent, with bactericidal effect at high concentration, tetracycline ointment is mainly used for skin surface infections caused by sensitive gram-positive and gram-negative bacteria. The drug can specifically bind to the A position of the 30S subunit of the bacterial ribosome, which can inhibit the growth of peptide chains and affect the synthesis of bacterial proteins. Many Mycoplasma spp, Rickettsia spp, Chlamydia spp, and Spirochetes are sensitive to this product, and Gram-positive bacteria such as Enterococcus spp, Staphylococcus spp, and most Enterobacteriaceae are resistant to tetracycline ointment, and there is cross-resistance with different species of tetracyclines. Tetracycline ointment rare adverse reactions, for tetracycline drugs allergy is prohibited, children, the elderly, pregnancy and lactation should be used according to medical advice. If you need to use tetracycline ointment, it is recommended to consult a professional doctor, do not unauthorized use of drugs to avoid adverse reactions.