Is that true for every type and format? You can walk into walmart and get regular and NPH insulin over the counter, no questions asked. Newer ones require a Rx.

I do think that the US is obnoxiously conservative, and far more medications should be OTC.

Instead, you cant even buy kidney friendly cat food without an expensive Rx from a vet and tons of controls. Heaven forbit someone buy it without proper consultation. Think of the Kittens!

Edit: after some reading, it seems that Canada and US are outliers in the west for allowing OTC insulin. UK and Europe requires Rx for all insulin.

Asia is more mixed. Japan, Korea: Rx required. China, Rx on paper, OTC in practice. India OTC