Generic medications only have to be something like 80% the same as the brand drug. That can make a big difference. It’s been a problem with Concerta and Adderall for several years now. You can call pharmacies and try to find the generic manufacturer that works for you in stock each month or ask your doctor to write brand medically necessary on your prescription and see if your insurance will cover it.
ADDitude Community Moderator, Parenting ADHD Coach, Podcaster & Author, Mom to teen w/ ADHD, LDs, and autism