In the US, clen was never approved for use because of it's long half-life (the FDA hates drugs with long half-lifes). It's not illegal, just not approved for sale. You used to be able to legally import a 30 day supply under the DSHEA, but I don't know if that's changed. You can get a script from doctors -- I did before I knew it wasn't available here, lol -- and import if you'd like.

