[landl0rd]

Correct, my point is that you often wind up purchasing overseas from foreign subsidiaries of the same companies that make the prescribed and dispensed stuff here. You're still purchasing and using pharmaceutical-grade. The legal question is separate.

[quantadev]

A large amount of pharmaceutical ingredients come out of China, and are safely used in American drugs approved, inspected, and tested [hopefully] by FDA. For those supply chains that are supposedly well regulated there's less risk than just purchasing from some unknown/untrusted entity that also happens to be in China, who might have put in all kinds of impurities or even poisons either by accident or on purpose.