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Pronunciation varies by accent · noun
A mild stimulant of the central nervous system used to relieve excessive sleepiness and inattention in elderly patients..
Use adrafinil when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Adrafinil means A mild stimulant of the central nervous system used to relieve excessive sleepiness and inattention in elderly patients..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use adrafinil where its definition matches the intended context.
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