I have been controlling my IBS fairly well with probotics and amitriptylene. I had to start taking antibiotics(amoxicillian 500mg 3x daily for 7 days) 2 days ago for a wisdom tooth infection. MY gut is starting to act a little crazy. I was wondering if this will stop after I am done with the antibiotics or are they killing off all the good bacteria in my bowels putting me back at sqaure one again? I sure hope not! Have any of you had similiar poblems? Any info will be appreciated.