"The Drug Abuse Profile will screen for seven classes of drugs: amphetamines (Ritalin, Benzedrine, etc.), benzodiazepines (Valium, Xanax, etc.), marijuana, cocaine, Opiates (hydrocodone, oxycodone, meperidine, etc.), and PCP.If a positive result is received, the results will be confirmed using gas chromatography/mass spectrometry (GC/MS) at no extra charge."