Antibiotics are medicines used in the treatment of infections caused by bacteria.
They work by killing bacteria or preventing their growth. Quinupristin and dalfopristin will not work for colds, flu, or other virus infections. Quinupristin and dalfopristin injection is used to treat infection of the skin or the blood. It may also be used for other conditions as determined by your doctor. It is given by injection and is used mainly for serious infection for which other medicine may not work.