VSL#3 Capsules is a probiotic medical food for the dietary management of Irritable Bowel Syndrome and Ulcerative Colitis consisting of 8 strains of live freeze-dried lactic acid bacteria. Probiotic Medical Food for Dietary Management of Irritable Bowel Syndrome (IBS) – High Dose and High Potency Refrigerated Probiotic with 112.5 Billion CFU, 1-Pack 60 Capsules Each