Effect curve
Adderall XR: what a typical day looks like
Onset around 0.5h, peak around 5h, lasting about 11h. These are population averages, not a prediction for you.
Typical Adderall XR curve
Population average for a dose at 8am. Yours will differ, and that gap is what logging shows.
How long does Adderall XR take to work?
Population averages put onset at roughly 0.5 hours after the dose. Timing varies with food, formulation and the person.
How long does Adderall XR last?
Typically about 11 hours, with the strongest effect around 5 hours. Your own duration may be shorter or longer.
Why do I feel a crash on Adderall XR?
Adderall XR is built to release gradually, but some people still notice a drop as it wears off. Logging how you feel at set times shows whether the dip is a pattern worth raising with your prescriber.
General information, not medical advice. Titrate never recommends a dose; talk to your prescriber about changes.