Update: picked up script for Rifaxam ($700 for 30 pills 200mg). Decided to read a bit more before starting the antibiotic. On Atrantil website read that one should not take probiotics while trying to treat SIBO. My ileocecal valve was removed during a sm bowel resection in '99. Started having belching in 2015. Reflecting on my past medical history it was about that time I started probiotics that I started having belching problems. I started (dr recommend) more serious probiotics and belching got worse. Doctor after doctor and suggestion after suggestion e.g. – remove gall bladder, stop cpap use, repair hiatal hernia, and on and on… The site (Atrantil) said taking probiotics was like adding fire to fire. So I delayed the antibiotic treatment and stopped all probiotics. Within 2 days my insane belching was diminished by over 50 % and at this point close to 75 %. I have the Rifaxam on standby but right now I am feeling better than I have in years!..