CEFTRIAXONE+SULBACTAM is a combination of two medicines: Ceftriaxone and Sulbactam. Ceftriaxone is a cephalosporin antibiotic. It has bactericidal action (kills bacteria). It works by preventing the formation of the cell wall (the outer protective layer of bacteria, which is essential for its survival) by preventing protein synthesis. Sulbactam inhibits the action of beta-lactamase. Beta-lactamase is an enzyme produced by bacteria that can destroy antibiotics (ceftriaxone).