Click Here:https://bigpharmausa.com/vyvanse-vs-adderall/ Vyvanse VS Adderall: Is Vyvanse Stronger Than Adderall; Vyvanse (lisdexamfetamine) and Adderall (amphetamine/dextroamphetamine) are stimulants used for both ADHD and narcolepsy. Vyvanse is often viewed as a smoother and longer-lasting option, functioning as a prodrug that gets activated in the body, providing reasonably consistent effects for 10-14 hours. Adderall closes the gap between the initial rush and the final crash with effect durations of approximately 4 to 12 hours, yet peaks and crashes tend to be more pronounced. Whether one works better than the other really depends on the individual, as both are powerful compounds that differ in the speed of onset, duration of action, and side effect profiles.