Table 1b. The Effects of Some Selected Antibiotics on GIT Microflora Agent Impact on Overgrowth of resistant strains Days to normalization of flora (post- administration) Other Entero- bacteria Entero- cocci Anaerobic bacteria Cefoperazone ¯¯ ¯¯ ¯ + not stated  in Lactobacilli and Bifidus;­ in C. difficile and Candida; 70% of drug excreted in bile29,48,49 Cefotaxime […]