Fortunately, it's the former. It's a 200+ year old nonprofit founded by a group of physicians in 1820 that developed the modern drug standards that most of the

Fortunately, it's the former. It's a 200+ year old nonprofit founded by a group of physicians in 1820 that developed the modern drug standards that most of the world actually relies on. https://www.usp.org/about/usp-convention https://www.usp.org/about/usp-convention I will actually point out an amusing note about Walmart's pharmacy services - you find them in weird places. https://www.delta.com/us/en/careers/corporate-careers https://www.delta.com/us/en/careers/corporate-careers Towards the bottom of the page at Delta's careers page you'll note that Delta's headquarters in Atlanta has a Walmart Pharmacy in it. Delta is essentially signalling to its constantly moving employees that you're more likely to find a Walmart near an airport than a CVS or a Walgreens (especially in super-rural America) and that pharmacy is a constant stream of pilots and flight attendants grabbing refills on their way through.