What prescription sleeping pill could show up in a teens blood work as a drug similair to cocaine?

Teen drug positive : If your teen shows up positive for cocaine, be very persistent in tracking it down. There are no cross reactions in a spectrophotometer test of urine falsely showing cocaine. If this was the test that was positive, then your teen has Cocaine in his system. Follow through aggressively by seeing your family doctor and a drug and alcohol counselor.