False positive for benzodiazepine

Most anti Anxiety medication like Prozac, Xanax (Alprazolam),Klonopin (clonazepam). Also Valium (diazepam), Serax (Oxazepam), Ativan (lorazepam), Halcion (Triazolam ),Rohypnol, Roofies, Tranks,Chlordiazepoxide (Klopoxid, Librax, Librium),Dalmane (Flurazepam), etc..