Doctors often try modafinil<span> (</span>Provigil<span>) or </span>armodafinil<span> (</span>Nuvigil<span>) first for narcolepsy because it isn't as addictive as older stimulants and doesn't produce the highs and lows often associated with older stimulants. Side effects of </span>modafinil<span> are uncommon, but they may include headache, nausea or dry mouth</span>