I was just changed to Amoxicillian for my dental work and your post gives me hope that the C-diff won't come back. I appreciate your information. I've been terrified of taking anything since my horrible experience and being extremely ill with C-diff after taking Clyndamycin. I also am taking the probiotics in the order given above. My bottle says two a day, but someone told me you can't overdose on probiotics and maybe I should take four during the time I'm taking the antibiotics. What are your thoughts/experience on this? Thank you!