Tranquilisers are neurologically active drugs. These affect the message transfer mechanism from nerve to receptor. Common tranquilisers are - diazepam (Valium), chlordiazepoxide (Librium) and alprazolam (Xanax), seconal (secobarbital), etc. Emtricitabine or tenofovir is a fixed-dose combination drug for the treatment of HIV infection.
Hence, valium, equanil and seconal are used as tranquiliser drugs.