Magnex Forte 3g Injection Magnex Forte 3g is a broad-spectrum combination antibiotic formulation consisting of Cefoperazone (a third-generation cephalosporin) and Sulbactam (a beta-lactamase inhibitor) in a 1:1 ratio. Cefoperazone acts by inhibiting bacterial cell wall synthesis during active bacterial cell division, while Sulbactam irreversibly binds to and inactivates beta-lactamase enzymes produced by resistant bacteria, thereby protecting Cefoperazone from degradation and broadening its spectrum against beta-lactamase-producing organisms. It is indicated for treating severe bacterial infections, including lower respiratory tract infections, intra-abdominal infections, complicated urinary tract infections, septicemia, skin and soft tissue infections, and gynecological infections.