I suffered for years from IBS and so did my daughter. Until one day when I was flying through Heathrow airport, in London, I stopped at the Boots Pharmacy in the airport. I asked them if they had anything for IBS. And the gal reached around to the shelf behind her and picked up a box of Colpermin. (peppermint oil) I bought many boxes and it worked great, so great that we are both cured. You can buy something in the US that is similar. I think its peptic something, but I am sure its on google.