Hi Walter. IBS is Irritable Bowel Syndrome. One alternates between constipation and diarrhea; I also get alot of cramping, stabbing pain and have alot of foods that I can not tolerate.The only medicine available has major side affects and thus is of questionable value to me.Thank you for asking. ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn