There's the U.S., and there are a few hundred other countries that are not the U.S., and believe it or not, most of these other countries do not mimic every internal rule or regulation in the U.S. (some of them don't even have English as their official language).

In most countries (like Germany), a patient will simply surrender his prescription to the pharmacist, pick up the factory-packaged (no "patient name", "prescription label" or whatsoever on it) drug, pay for it and leave. That's it.

What this means in effect is that from now on, foreigners are not allowed to carry-on any liquid drugs on flights within, to and from the U.S. or U.K., no matter how essential they may be.

Casualties of war, I guess.
No wait, they are foreigners, so they are just collateral damage.