Prescription drug

Where is Helium and Nitrogen and Xenon Xe-129 made?

1 company sell it under their own name. None of their labels names the factory.

Companies and their factories

Company on the labelFactoryWhereLast FDA inspection
Polarean, Inc. Xenoview635 L / 63.5 L / 5651.5 L · NDC 80534-6350The label doesn't name the factory. Plants this company names for other drugs