Kelefix is a brand name for a medication that contains the active ingredient cefixime, which is a broad-spectrum oral cephalosporin antibiotic. It is used to treat various bacterial infections, including respiratory tract infections, urinary tract infections, and certain types of gonorrhea. Cefixime works by inhibiting the growth of bacteria, effectively helping to eliminate the infection. It is important to use this medication as prescribed by a healthcare professional.