| Effect | Decrease |
| Trial Design | Double blind |
| Trial Length | 2-4 Weeks |
| Number of Subjects | 23 |
| Gender | Both Genders |
| Age Range | 45-64, 65+ |
In hospitalized patients who tested positive for _clostridium officinale_ (known to cause diarrhea) and were already on antibiotic therapy, supplementation of _l. reuteri_ ATCC 55730 at 10^8^ CFU daily for 2-4 weeks significantly reduced the frequency of antibiotic-induced diarrhea from 50% in placebo down to 7.7%.