Ophthalmic drops of Cephalosporin works against a wide range of gram positive and negative bacteria. Cefatak not only works as an antibiotic but also helps other antibiotic drugs against the action of β lactamases produced by the bacteria in response to these antibiotics. It treats infections caused by bacterial strains producing enzymes like penicillinase, β lactamase, etc that have an ability to resist β lactam antibiotics.