Rifaximin
"Had Tropical Sprue twice with parasites and have been suffering since 1969 Vietnam and Gulf War to the present with diarrhea, bloating, cramps, flatus, perianal fungal infections. Nothing worked accept this medication to stop the frequent loose stools and a host of other symptoms. Had every test that the GI doctors could dream up. I have taken every probiotic known and none of them have worked to reduce the symptoms. I have done every elimination diet and also been on Chinese medicine and treatments. I have used it for two courses of treatment with remarkable results, a 90% reduction of symptoms overall.  I am a retired RN."