Modafinil: Modafinil (provigil) is an analeptic drug approved for treatment of narcolepsy & excessive daytime sleepiness associated with sleep apnea. It works by increasing the release of norepinephrine & Dopamine from brain synapses, & also increases release of histamine from the ypothalamus. Hence it promotes wakefullness.
Answered 5/2/2016
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