All sorts of exemptions and loopholes exist around drugs. Both experimental and emergency use make an end run around licensing. This was the case with rBGH in dairy cows. The dairy industry didn’t have to disclose its use, on labels or otherwise, due to its “experimental” designation. If you’re thinking what I’m thinking (Pinky and the Brain) this sounds extremely similar to the clever-speak surrounding mRNA use on humans during Covid—experimental and emergency.