My wife takes amitriptyline, gabapentin, hydrocodone, ropinirole, Coumadin (warfarin). She suffers from Irritable Bowl Syndrome, Any relation to the drugs... Gerontologist have not found any specific problems other than the symptoms. Flatulence, Extended and numerous times spent on the toilet in any one day, constipation, pain in lower abdomen, Colorectal transit study showed no blockage. All normal test were clear and good. Lower GI exam was clear and good. She is 5-10, weighs 105 lbs and is the equivalent of a human chicken wing in appearance. Any ideas?