GrammarTroika Sister #2 is back in the game with this label from her daughter’s prescription. Apparently Walgreens isn’t sure this is a legal name.
I’ve only ever seen this on prescriptions for animals before — and even then, it has always driven me crazy. My pets have names, and those names are their real names. I always supposed that it was a legal thing, so pharmacies could distinguish between their human and non-human patients. But Skylar is definitely human; I’ve seen pictures of her. So this is kind of puzzling!