Switching from Vyvanse to Concerta after years. What actually felt different?

A switch from Vyvanse to Concerta after years is a change of both molecule and release system, so what felt different can include coverage hours, smoothness, and side effects, without proving that one product is universally better. Vyvanse is lisdexamfetamine, a long-acting amphetamine prodrug. Concerta is methylphenidate in an OROS tablet. If the change is persistent, distressing, or affecting daily functioning, bring a brief timeline to the prescribing clinician rather than changing the dose independently. References: https://www.caddra.ca/wp-content/uploads/CADDRA_ADHD-Medication-Chart_May2026.pdf https://pdf.hres.ca/dpd_pm/00077178.PDF https://www.camh.ca/en/professionals/treating-conditions-and-disorders/adult-adhd/adult-adhd---treatment/adult-adhd---pharmacotherapy https://www.nice.org.uk/guidance/ng87/chapter/recommendations

Switching Vyvanse to Concerta after years felt like someone moved the end of my day. Mornings were fine. By dinner I was cooked in a way I had not been. I was also less wired, which I liked. I wrote down clock times for a week and brought them in rather than asking to jump back immediately. My prescriber said people notice different evenings on those two and did not promise Concerta would match Vyvanse. This is only what happened to me.