 Probiotics (such as Lactobacillus GG and Saccharomyces boulardii) reduce the duration of symptoms by one day and reduced the chances of symptoms lasting longer than four days by 60%.The probiotic lactobacillus can help prevent antibiotic-associated diarrhea in adults but possibly not children.For those with lactose intolerance, taking digestive enzymes containing lactase when consuming dairy products often improves symptoms.