I find metronidazole (Flagyl) to be extremely effective. In fact, my symptoms had vanished entirely upon concluding my latest round (1.5 grams daily for 2 weeks). Unfortunately, I tend to experience subtle psychological effects after around one week, and metronidazole also happens to be renowned for its ability to induce peripheral neuropathy.
I'm presently experiencing mild success with sulfasalazine, which is technically a sulfonamide antibiotic (although 5-ASA is thought to be primarily responsible for its therapeutic action).
Post Edited (Delarge) : 5/24/2009 9:20:33 PM (GMT-6)