What does nuvigil show up as on a drug screen?

Nuvigil is the brand name of Armodafinil, a non-amphetamine wakefulness promoting agent prescribed for narcolepsy, shift-work sleep disorder, and obstructive sleep apnea. Its chemical structure makes it an ampakine, which is not similar to any other drug tested for on a standard 5- or 7-panel drug screen such as cannabis, amphetamines, opiates, cocaine, PCP, benzodiazapines, etc. However, that does not mean that it cannot be tested for, should a screener choose to look for it specificially.