What's behind shortages of Adderall, Ozempic and other meds?

Shortages of drugs like Adderall are growing in the United States, and experts see no clear path to resolving them. For patients, that can mean treatment delays, medication switches and other hassles filling a prescription.

In recent months, unexpected demand spikes, manufacturing problems and tight ingredient supplies have contributed to shortages that stress patients, parents and doctors. For some drugs, such as stimulants that treat ADHD, several factors fueled a shortage and make it hard to predict when it will end.

Shortages, particularly of generic drugs, have been a longstanding problem. The industry has consolidated and some manufacturers have little incentive to solve shortages because cheap generics generate thin profits.