Has anyone in Canada switched from brand Vyvanse to generic lisdexamfetamine? Did it feel different?

People in Canada do switch from brand Vyvanse to generic lisdexamfetamine, and some notice a difference while others do not. Generic lisdexamfetamine is marketed in Canada. Health Canada product monographs exist for generic lisdexamfetamine, including examples such as APO and Teva products, which means those generics have been approved to Canadian standards. If the change is persistent, distressing, or affecting daily functioning, bring a brief timeline to the prescribing clinician rather than changing the dose independently. Related reading: https://www.fastreat.com/en/blogs/adhd-medication References: https://www.caddra.ca/wp-content/uploads/CADDRA_ADHD-Medication-Chart_May2026.pdf https://www.caddra.ca/wp-content/uploads/Canadian-ADHD-Practice-Guidelines-4.1-January-6-2021.pdf

Different for me. I expected the generic to feel weaker because I had heard that story, and it did not. Same morning start, same evening parenting window, same dry mouth. I still told the clinic I had switched so they could watch response, not because I felt wrecked. Brand was not magically smoother in my body. Just my Canadian fill, not medical advice, and I would not tell anyone their insurance is wrong based on how I felt.

I switched in Ontario when the pharmacy filled generic lisdexamfetamine instead of brand Vyvanse. The first week felt a bit bumpier after 4pm, like I was fading sooner, but I had slept badly so I cannot pin it on the bottle. I logged wake-up, crash time, and mood for two weeks and took that to my prescriber instead of deciding brand was always better. They did not say everyone feels a difference after a generic switch. This is only my experience, not a reason for anyone else to fight their plan or change dose on their own.