 In addition to conducting research on kinase inhibitors and other small molecules, Cephalon licensed other compounds, purchased other products, and acquired entire companies, in the latter case, including CIMA Labs, Anesta, and Laboratoire Lafon.It was from Lafon that Cephalon obtained the rights to modafinil, which it marketed under the trade name Provigil, for the treatment of excessive daytime sleepiness associated with narcolepsy, sleep apnea, and shift work sleep disorder.Sales of Provigil reached nearly one billion dollars in 2008.