A drug called Nuvigil could become the first medicine specifically approved in the United States to treat jet lag.
Nuvigil is a slightly modified version of an older stimulant called Provigil, both made by Pennsylvania-based Cephalon, The New York Times reported.
Nuvigil, which went on sale in June, already has FDA approval for treatment of excessive sleepiness associated with narcolepsy, sleep apnea and "shift work sleep disorder."
Initially, the FDA said it would take six months to review Cephalon's application to have Nuvigil approved as a jet lag treatment, instead of the usual 10 months, The Times reported. But late last year, the agency said it would delay its decision until March 29 in order to have more time to review data, the company said.