With some studies show 10% to 15% of Americans have irritable bowel syndrome, pharmaceutical companies are working to find better treatments for the key symptoms of chronic diarrhea, constipation and cramping. Only two drugs have been approved so far, Zelnorm for constipation and Lotronex for severe diarrhea, and with few other options, some patients are turning to alternative treatments, such as acupuncture.

Related Summaries