Ampicillin Sodium Sulbactam Sodium (Ampinex Plus) 1g/500mg Powder for Injection, IM/IV, Vial 1's is a combination antibiotic used to treat a wide range of bacterial infections, including respiratory, urinary, skin, and soft tissue infections. Ampicillin works by inhibiting bacterial cell wall synthesis, while Sulbactam helps to prevent the breakdown of Ampicillin by beta-lactamase enzymes produced by resistant bacteria. It is administered via intramuscular (IM) or intravenous (IV) injection, as prescribed by a healthcare professional.