Posted by Berylvt at 10/08/16 09:35:35Antibiotics will not effect your B12 levels. The B12 supplement you take is absorbed as usual.
Your test results will come with the "normal Range" telling you whether your levels OK or not.
More importantly the antibiotics will affect your microbiome. Taking probiotics should help this. But don't worry too much. Your microbiome will restore itself after a short time of eating properly once the antibiotics are finished. In any event it is very important that you treat the infection.