I have been using Iberogast for IBS and RUQ Pain for the last couple of weeks. I think it's worth trying, I have found it to be helpful so far. I got it from a regular pharmacy (although I think it was behind the counter and had to ask for it) If you go on the website for Iberogast, it will give u links to pharmacies in your area that carry it. Thats how I found one near me.
Hope that helps :)