Magnex Forte 1.5g Injection Magnex Forte 1.5g is a combination antibiotic comprising Cefoperazone (a third-generation cephalosporin) and Sulbactam (a beta-lactamase inhibitor) in a 1:1 ratio. Cefoperazone works by inhibiting bacterial cell wall synthesis during active replication, while Sulbactam irreversibly inactivates beta-lactamase enzymes produced by resistant bacteria, thereby protecting Cefoperazone from degradation and broadening its spectrum of activity. It is indicated for treating serious bacterial infections, including lower respiratory tract infections, urinary tract infections, intra-abdominal infections, bacterial septicemia, skin and soft tissue infections, and gynecological infections.