Adderall is in short supply because two factors:

• a main manufacturer Teva Pharmaceuticals shutdown during Covid due to worker shortages. They are still having disruptions to manufacturing.

• prescriptions are up, way up. Highest they have ever been. Big social media campaign during the locksdowns and lots of attention on mental health diagnosis. Adderall is the first medicine most people with ADHD will attempt.

Diabetes auto injectors is because it now has two uses and one of those makes the company more money. (Semaglutide, sold as the brand name Ozempic and Wegovy) is only manufactured by one company using a very delicate and expensive process. The company split the output from the factory into two products: Ozempic for diabetes type 2 and Wegovy for non-presciption weight loss. Same product, but two different uses and the company presumably makes a lot more money as a lifestyle drug. It is immensely hugely crazy mammoth popular for off-label prescriptions for weight loss.