| http://www.w3.org/ns/prov#value | - In particular, Provigil does not result in side effects such as addiction, feeling jittery, and crashing afterward.[iii] As a result, the drug is considered the ???gold standard??? for the treatment of the excessive sleepiness accompanying sleep disorders.[iv] United States sales of Provigil increased from $25 million in 1999 to $475 million in 2005 to $800 million in 2007.[v]
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