It is not advisable to repeat Zedocef DT 100 mg Tablet (Cefpodoxime) or start any new antibiotic without a doctor?s advice, as the cause of dysentery (a severe form of diarrhoea) needs to be confirmed. Yellowish stools may indicate a bacterial or parasitic infection that requires specific treatment. Please see a doctor for a stool test and the appropriate treatment, especially if your symptoms persist, you feel weak or dehydrated, have a fever, or notice blood in your stool.