Check out google shopping for places that sell it and ship it to norway.
It costs about $20 extra US to ship the package with refrigeration which will prevent the probiotic from being destroyed by shipping. If you ship it without refrigeration, the probiotic should still be rather intact as long as it is shipped quickly. Probiotics can survive up to a week without refrigeration.
If you don’t want to fork up the cash to pay for a good probiotic, you could simply just eat a bunch of (homemade) kefir or greek yogurt. This also contains probiotic.