Dexedrine spansules last about 6 to 8 hours on the chart. How does that compare with Vyvanse for a full day?

On the CADDRA chart, Dexedrine spansules are estimated at about 6 to 8 hours and Vyvanse at about 13 to 14 hours, so the labelled windows are not the same length for a full day. Those numbers are estimates. CADDRA footnotes that duration is individual, that clinician judgement matters, and that the chart should not be relied on alone. 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://www.camh.ca/en/professionals/treating-conditions-and-disorders/adult-adhd/adult-adhd---treatment/adult-adhd---pharmacotherapy https://www.caddra.ca/wp-content/uploads/Canadian-ADHD-Practice-Guidelines-4.1-January-6-2021.pdf

Spansules never felt like a full-day medicine for me the way Vyvanse did. I would be useful for a chunk of the day and then hunting snacks and a second wind. I tried to do a cost-per-hour spreadsheet and my pharmacist shut that down because the price depended on the plan and the dose. I stopped comparing dollars. I brought the actual clock times to clinic instead. This is only my experience, not a shopping guide.