Adderall has a half life of 9 to 14 hours, which means that 9 to 14 hours after dosage, only half of the drug remains in your body. Adderall will completely clear of your system in 3 days. However, this can vary based on several factors. Testing for Adderall can be done through urine, hair, saliva and blood.
How long does it take for a 30 mg Adderall to kick in?
Initial effects of Adderall can be felt starting anywhere from 30 to 60 minutes after administration. Following administration of a single dose 10 or 30 mg of Adderall to healthy volunteers under fasted conditions, peak plasma concentrations occur approximately 3 hours post-dose.