Vancomycin belongs to the glycopeptide class of antibiotics, and glycopeptide antibiotics belong to the peptide class of antibiotics. Peptide antibiotics, which are neither penicillins, cephalosporins, nor erythromycin antibiotics, are not the same as haloperidol and sulfonamide antibacterial drugs. Vancomycin is also a drug that kills bacteria, but the antibacterial range is narrower, that is, it has a therapeutic effect only on very few bacteria and is ineffective against many bacteria. Vancomycin has more toxic side effects, mainly the application may affect the hearing, but also may damage the kidneys to cause renal failure, that is, there is a strong ototoxicity and nephrotoxicity. There are also people who will be allergic and even cause anaphylaxis, thus limiting the clinical application of vancomycin. Vancomycin is used relatively rarely in clinical practice, mainly for the treatment of infections with Gram-staining positive bacteria that are ineffective, refractory and fatal to other antibacterial drug treatments.