They both stimulate the central nervous system and effectively treat the symptoms of ADHD and narcolepsy. Ritalinīoth Adderall and Ritalin are prescription drugs that help manage the symptoms of attention deficit hyperactivity disorder or ADHD. As previously mentioned, the type of testing method used is needed to properly detect Adderall in the body. The half-life of the drug is 10 hours, meaning that after the period passes, half of the dextroamphetamine component will be expelled by the body.Ĭertain traces of it will remain, however, which can be broken down by the systems and expelled in three days. How long does Adderall stay in your system Adderall Half-lifeĪdderall is composed of various active ingredients, but its main component is dextroamphetamine. Note: Adderall can also be detected through hair.