Arimidex isn't federally scheduled like steroids, ketamine, or valium (example) but it is a prescribed medication so in a sense, it is "controlled" (you'll need a prescription).
I'm not sure what the law says about "designer" medications like liquidex though.
I believe it falls under the same category as nolvadex and clomid - that its not illegal and if it past through custome they would probably let it through but your not "supposed" to have it without a script (anastrazole)
Nope...it's not a class III scheduled substance, but it is controlled because it's a prescription med. I don't think that you would/could get in much trouble for possession...It would be comparible to getting busted for antibiotics.
Rx = State Controlled/Regulated meds like hGH, Prozac, Viagra, Arimidex... and then you have Controlled meds that are also Federally Scheduled like Steroids, Ketamine, Valium, Phentermine, Oxycontin, etc.