Seems like run of the mill corporate price gouging to me. And they'll get away with it because most people don't think ADHD is a 'real' disorder. No way there'd be an insulin shortage for a year and a half.
I don't know anything and can't prove anything, but it sure is easy for me to imagine that DEA officials who would be willing to help that along by shutting down manufacturers who didn't play by this cartel's rules would make a lot of wealthy friends who would be motivated to take care of those officials somehow