Under every house is a foundation, and under most foundations are footings. Most of the time we take footings for granted, and usually we can: For typical soils, a common 16- or 20-inch-wide footing can more than handle the relatively light weight of an ordinary house.
According to HomeDrugTestingKit, amphetamines are detectable in urine for up to 4 days. This is an average as everyone metabolizes medication at different rates. According to the prescribing packet insert for Adderall, it has a half-life of 12 hours for staying in your system. For more information about how it affects your bloodstream I suggest you refer to the packet insert with the medication, or ask your doctor.
Dextroamphetamine, the main component of Adderall, has a half-life of 10-12 hours according to the FDA [1]. For the drug to drop to negligible levels in your body, it takes over 2 days. The livers of different people break down the drug at different speeds, so Adderall exits some bodies more quickly. Hence, for some people the drug might be detected in a urine test even on day 3. Sources.