Ceftriaxone, sold under the trade name Rocephin, is an antibiotic useful for the treatment of a number of bacterial infections. This includes pneumonia, ear infections, skin infections, urinary tract infections, gonorrhea, pelvic inflammatory disease, sepsis, bone and joint infections, intra-abdominal infections, and meningitis. It is also used preoperatively to reduce the risk of postoperative infections. It is administered by intravenous or intramuscular injection.