Cefixime and Dicloxacillin are antibiotics, which are used to treat various types of infections. However, just as they can help kill harmful bacteria, they do not discriminate and also kill health bacteria in the body and this could possibly result in digestive problems and yeast infections. Thus, the Lactic Acid Bacillus is added to try to keep you balanced out and prevent this from occurring. Side effects to this medication may include: nausea, dizziness, diarrhea and skin rash. Cefixime and Lactic Acid Bacillus Tablets. Cefixime Trihydrate � Cefixime is used to treat a wide variety of bacterial infections like urinary tract infections, ear infections and lung infections caused by bacteria. This medication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria.