If the drug store can't ship it to the Netherlands, there's a good chance it's not legal to ship it as an individual.

The Swedes seem to like things that taste/smell like ammonia, like salt licorice. Perhaps there's an equivalent in Sweden?

I seem to remember there's an equivalent candy in Germany as well, the 'cats ears' with the extra delicious ammonia flavor added in.

Mike, I hope you are able to find some of the Buckley's.