Ceftriaxone injection is a broad-spectrum antibiotic used to treat various bacterial infections, including respiratory, urinary tract, skin, and bloodstream infections. It's also effective for treating severe infections like meningitis and gonorrhea. Ceftriaxone works by inhibiting bacterial cell wall synthesis, leading to the death of bacteria. Administered via intramuscular or intravenous injection, it's commonly prescribed in hospitals due to its potency and long duration of action. The treatment is generally well-tolerated, though side effects like diarrhea, rash, or allergic reactions may occur.