The current answer
A medication that is legal at home and prescribed to you can be a controlled substance elsewhere. This applies in ordinary destinations, not obscure ones, and it applies during transit.
This page is still being built. Until it is complete, verify independently using the sources below. The method in the book does not change; the specifics do.
Where to verify it yourself
- The destination’s health ministry or customs authority, directly
- The destination’s embassy, for anything controlled
- The International Narcotics Control Board, which publishes country-level guidance
What the book says
See Phase 4 §4. The book teaches the method for working this out. This page carries whatever the current specifics happen to be.
What changed and when
No revisions yet.