irritable bowel syndrome
"I have suffered from constipation and IBS forover 40 years.  The drug works great, no gas, no cramping.  I still have occasional problems and occasionally diarrhea.  I will soon find out if it works as well when I travel -- which has been terrible in the past.  If it works when I travel it will be a miracle!  The price, however, is shocking and so in order to buy it at all, I have to order it from Canada."