Thank you for your response and the link.
It is a very encouraging story.
I have a lot of friends who live abroad: Europe, South America for instance. Two of them suffer from IBS. Their doctors prescribed them a medication. The drug is called Trimebutrin and they tell me they are very happy because it helps a lot with symptoms. It is, from what I have read, a regulator of digestive spasms. It is not available in the U.S.