I had a similarly bad reaction when CVS switched from Actavis to a generic 36mg concerta manufactured by Trigen Labs last year. I found the Actavis at Walgreens and have been filling my prescription there since. I recently picked up a new bottle and it is still Actavis (filled 9/19). I hope Walgreens isn’t going to discontinue Actavis! Please do file an adverse reaction report with the FDA. I did for the Trigen and the FDA followed up with me by phone. The Trigen 36mg was eventually recalled.