VSL#3 is a high potency probiotic medical food that is clinically proven in the dietary management of irritable bowel syndrome (IBS), ulcerative colitis (UC) and ileal pouch in adults and children. Look for the VSL#3 pharmacy shelf card in the probiotic aisle, and speak with your pharmacist since it’s kept refrigerated behind the counter to maintain its potency. br br For more information on VSL#3 including where to buy visit www.vsl3.com br br VSL#3® is a high potency probiotic medical food for the dietary management of irritable bowel syndrome (IBS), ulcerative colitis (UC) and ileal pouch and must be used under medical supervision. Ask your medical professional if VSL#3® is right for you.