I have been on Meprobamate and Librax successfully for 20 years. The new GI docs won't even prescribe Meprobamate since it is a "controlled" substance. I have predominatly diarrhea IBS. Those of you out there with the same kind of IBS, please tell me what prescriptions work for you so I can be knowledgeable about this before I speak to a doctor. Lord knows the doctor won't know what might work for me and won't care about my pain, cramps and suffering.