AVENTRIAX 500GM IV INJ 1sWhat Is Aventriax 500 mg IV IM Injection? Aventriax is a third generation cephalosporin antibiotic, with the active ingredient ceftriaxone sodium. It is manufactured and marketed by SanofiAventis in Pakistan Uses & Benefits Aventriax is indicated for treating a wide range of serious bacterial infections, including: Respiratory tract infections like pneumonia and bronchitis Urinary tract infections (UTIs) and biliary abdominal infections Skin and soft