Carecef 1g Injection contains Ceftriaxone, a broad-spectrum cephalosporin antibiotic effective against a wide range of bacterial infections. It is commonly used to treat severe infections such as pneumonia, meningitis, and infections of the skin and urinary tract. The injection works by disrupting bacterial cell wall synthesis, leading to the death of the bacteria. Always administer under the supervision of a healthcare professional and follow the prescribed dosage for optimal results.