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Author: Admin | 2025-04-28
Nov 23, 2017 Nick asked I take 15mg of Adderall XR and it's only lasting for 4 hours, how come? Are there better alternatives to Adderall? Answer Adderall XR contains amphetamine and dextroamphetamine mixedsalts in an extended release formulation. Adderall may be used for thetreatment of attention-deficit hyperactivity disorder (ADHD), narcolepsy, and obesity(off-label indication). The XR formulation of Adderall is designed to last significantlylonger than the immediate release formulation and “should” last longer than 4hours. With that being said, ADHD medications require dose titration in orderto ensure the best effect. Starting witha low dose and increasing weekly usually produces the best results. Becausethese medications have known side effects, it is important to allow enough time for the medication to take effect inorder to find the right dose. How long doesAdderall XR last?The extended-release capsules (Adderal XR) has been shown toreach maximum absorption after 7 hours on average. The immediate-releasetablets reach maximum absorption after 3 hours on average. Both Adderall andAdderall XR reach 50% of their concentration after about 9-11 hours inchildren, 11-14 hours in adolescents, and 10-13 hours in adults. Drugmetabolism tends to differ between individuals based on their genetic profile.In this case, amphetamine metabolism relies on CYP2D6 to break down the drug. Ifyou happen to have a type of CYP2D6 that is considered a rapid metabolizer, it is possible that the drug will not workas long for you. This is not a common scenario, but in the chance that youare a rapid metabolizer, changing your medication to methylphenidate may
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