The effects of Adderall last for varying amounts of time depending on the version of the drug. The immediate-release Adderall version will last around 4–6 hours per dose, while Adderall XR, the extended-release version, only needs to be taken once each morning.

How long does Adderall last before you crash?

The Adderall crash is like an intense mini-withdrawal. It typically begins within several hours of your last dose and can continue for one or two days. 3 Most people experience physical and mental exhaustion along with a markedly depressed mood.

Is 10mg of Adderall a lot?

In adolescents with ADHD who are between the ages of 13 and 17, the recommended starting dose is 10 mg per day. The dose may be increased to 20 mg per day after one week if their ADHD symptoms are not adequately controlled. In adults, the recommended dose is 20 mg per day.