Inj>PHORZONE 1-S is a combination of two medicines: Ceftriaxone 1G and Sulbactam 500MG. Ceftriaxone is an antibiotic. It works by preventing the formation of the bacterial protective covering which is essential for the survival of bacteria. Sulbactam is a beta-lactamase inhibitor which reduces resistance and enhances the activity of Ceftriaxone against bacteria.