Here's the lecture series I was told contains information about taking medication breaks https://www.youtube.com/watch?v=BzhbAK1pdPM&list=PLzBixSjmbc8eFl6UX5_wWGP8i0mAs-cvY. I watched the whole thing because it's informative and engaging, but there is no information about breaks.
I have been unable to find studies on medication breaks and on long-term stimulant usage. Questions of tolerance have gone largely unanswered in the scientific literature as far as I can tell. If anyone has concrete information on this topic, please let me know.
https://buymeacoffee.com/adhdmath