diarrhea
"3 bowel resections due to crohn's disease, I now have short bowel syndrome with chronic diarrhea.  I have tried every anti-diarrheral drug there is and the only one that has helped is codeine.  I consider it a wonder drug for my condition, enabling me to lead a mostly normal life.  I have taken the same amount everyday for 6 years. I don't feel "high", but do feel slightly drowsy occasionally.  I did have a period of 8 months where I stopped taking it and while I did have some physical symptoms (not mental) in stopping, they were not too bad, the symptom relief I had on the drug far outweighed the negatives. I continue to take and it makes my life easier."