Norfloxacin is a synthetic chemotherapeutic agent[1][2] occasionally used to treat common as well as complicated urinary tract infections. [3] it is sold under various brand names with the most common being noroxin. In form of ophthalmic solutions it is known as chibroxin. Norfloxacin is a second generation synthetic fluoroquinolone (quinolone) developed by kyorin seiyaku K. K.