@anniewee My gastro told me about it..( and the dietician my boyfriend saw said it was the only one she recommended) you can get it at some pharmacies.. but I live way out in the country .. so I order it on Amazon.. pricey.. has to be refrigerated.. comes in a huge box with "ice packs".. it seems to help..I'm currently having alto of trouble with FOOD.. don't know what to eat. but know alot of what NOT to.. eating is so dangerous... prayers for you!! I hope this helps you!!