Ampicillin (Ampisaph-1000) 1g Powder for Injection, IM/IV, Vial 10's is a broad-spectrum penicillin-type antibiotic used to treat various bacterial infections, including respiratory tract infections, urinary tract infections, gastrointestinal infections, and septicemia. It works by inhibiting bacterial cell wall synthesis, leading to bacterial cell death. Administered via intramuscular (IM) or intravenous (IV) injection as prescribed by a healthcare professional.