Irritable bowel syndrome (IBS) is a common disorder that affects the large intestine. Its symptoms include abdominal (belly) pain, bloating, and gas. IBS-D is a type of IBS in which the symptoms also include frequent diarrhea.
Doctors don’t understand everything about what causes IBS, but the symptoms appear to result from muscle contractions in the large intestine and sensitivity to food, gas, or stool in the large intestine.
If you have IBS-D, you know how it can make a major impact on your lifestyle. IBS-D can cause you to miss your favorite activities, turn your mealtimes into minefields, and fill your work and personal life with constant bathroom interruptions.
While prescription and over-the-counter medicines help some people with IBS-D, others don’t find relief with current medications. Right now, doctors participating in the PREVAIL clinical research study are testing an investigational medication to learn if it may be a future treatment option for IBS-D.