It is produced by the strain of Semisynthetic first generation cephalosporin for injection. Cephaloridine had the same antibacterial spectrum as Cephalothin, but had stronger antibacterial effect than Cephalothin. Oral malabsorption, The drug is excreted 75%-80% in the urine by injection for 24h. The half-life of normal plasma elimination was 1.5h, and the binding rate of plasma protein was 22%.