For what length of time would adderrall stay in my urine. also does roxicodone (oxycodone) really stay in ur system 15-20 days?

Amphetamines are: Relatively short-acting, although depends on the form. There is a continuous release adderal which may stick around a bit longer, but for the most part is detectable for 3-5 days, depending on how much you are taking. Oxycodone is very short-acting, and a single use will not be detectable after 2 days, and regular use is detectable for 3-5 days at most.