The FDA has asked Novartis to stop selling Zelnorm in the US. Because they are concerned about the finding in studies done. I have added links to a couple of different sources with the story. I can tell you that this is the first thing in 20 yrs of dealing with IBS that has actually helped me. But it is back to the old treatments and crossing my fingers that they help in some way. Just thought I share in case someone else hadn't seen the story yet.