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Chemical structure of modafinil.. This page lists chemical compounds similar to modafinil, known as modafinil analogues and derivatives.These are structural analogues and derivatives of modafinil, a drug that affects dopamine levels in the brain in an unusual way (atypical dopamine reuptake inhibitor or DRI).
Modafinil, sold under the brand name Provigil among others, is a central nervous system (CNS) stimulant and eugeroic (wakefulness promoter) medication used primarily to treat narcolepsy, [3] [8] [15] a sleep disorder characterized by excessive daytime sleepiness and sudden sleep attacks. [16]
Adrafinil is a prodrug; it is primarily metabolized in vivo to modafinil, resulting in very similar pharmacological effects. [6] Unlike modafinil, however, it takes time for the metabolite to accumulate to active levels in the bloodstream. Effects usually are apparent within 45–60 minutes when taken orally on an empty stomach. [citation needed]
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Armodafinil exhibits linear time-independent kinetics following single and multiple oral dose administration. Increase in systemic exposure is proportional over the dose range of 50–400 mg. No time-dependent change in kinetics was observed through 12 weeks of dosing. Apparent steady state for armodafinil was reached within 7 days of dosing.