Vancomycin injection is used alone or in combination with other medications to treat certain serious infections such as endocarditis (infection of the heart lining and valves), peritonitis (inflammation of the lining of the abdomen), and infections of the lungs, skin, blood, and bones. Vancomycin injection is in a class of medications called glycopeptide antibiotics. It works by killing bacteria that cause infections.

Antibiotics such as vancomycin injection will not work for colds, flu, or other viral infections. Taking or using antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment.