Bismuth subcitrate potassium / metronidazole / tetracycline
"Just to counter all the fear here. On day 8, Zero side effects other than feeling that my gi function is actually feeling better.  Pain to take all the pills , omeprazole morning and night before meals, others four times a day after meals containing mostly carbs.  And Florastor twice a day, only pro biotic not killed by treatment.  Thought perhaps mostly people with bad experiences post, thought some light could be helpful ."