[rayiner]

> Since old insulin patents have expired, is it that you are allowed to buy generic insulin but there are no manufacturers, or that you not allowed to buy generic insulin because recent advancements are so good that doctors won’t prescribe the old stuff anymore?

Walmart sells human insulin (the previous gen stuff) for $25/vial. It’s manufactured by Novo Nordisk. It’s what was regularly prescribed in the 1990s. It has downsides, such as requiring a strict eating schedule: https://diabetesstrong.com/walmart-insulin/

Most doctors today prescribe human analog insulin. They do this because it is better at controlling blood sugar without requiring strict eating schedules.