IBS is a functional bowel disorder of the gastrointestinal (GI) tract characterized by recurrent abdominal pain and discomfort accompanied by alterations in bowel function, diarrhea, constipation or a combination of both, typically over months or years.

Pau d'Arco (Lapacho) is made from a tree native to the Amazon rainforest. Pau d'Arco is known to strengthen the body's immune system, especially a weakened immune system due to one of many factors such as: chronic fatigue syndome or myalgic encephalomyelitis (CFS or ME), fibromyalgia (FMS), Candida Albicans overgrowth (candidiasis, oral thrush, vaginal yeast infection, etc.), cancer and tumors, viruses such as human immunodeficiency virus (HIV, cause of AIDS), anti-biotic use, steroid use, etc.