The antibiotic cefixime is useful in treating numerous bacterial infections. Cefixime belongs to the cephalosporin class of antibiotics. The antibiotic works by stopping the growth of bacteria. This antibiotic can be used only for bacterial infections as the Cefixime Tablet 200mg is not effective for viral infections. An antibiotic can fail to work if it is used when it is not needed. As your doctor directs, Cefigard-200is taken by mouth, either with or without food, once a day. Children may also be given this medication twice a day.