I was taking antimicrobials recently but I really want to do a small intestinal bacterial overgrowth (SIBO) test, do I have to wait the whole 4 weeks?

If you've been taking antimicrobials recently but want to do a SIBO test now, it's best to wait the whole 4 weeks, but not crucial.

Ideally, you should stop antimicrobials for 4 weeks before taking the test and stop probiotics 48 hours before the test.

You have a choice to make, as there is no right answer.

If you decide to stop them for less than the 4 weeks, or not stop them at all, let us know as then we can take it into account when looking at your test results.