Update on Rifaximin in Canada - Posted Nov 2016
As of 2013, Rifiaximin was approved in Canada for it's original liver disease treatment. It is not yet approved the purpose IBD, SIBO, or Crohns in Canada.
That being said, it is available in Canada with the name Zaxine and some GI's are prescribing it for IBS. I tried it for two weeks and it did absolute wonders for me. Less diarrhea, better formed stools... I was dealing with Post Infection IBS - from a bad relapse of C diff.
It was not covered by my Health Plan as it they say it is not approved in Canada for the purpose of IBS. It is approved for IBS in over 33 countries so again Canada lags behind in health care.
It is expensive.... a two week supply was $390 cdn. From what I hear, like many other prescriptions, Costco carries it and it might be cheaper there. It was definitely worth it for me....
Anyways, hope this helps. Also recommended for me was the FODMAP diet... that's helping too.