 Tetrazepam is a benzodiazepine site agonist and binds unselectively to type 1 and type 2 benzodiazepine site types as well as to peripheral benzodiazepine receptors.The muscle relaxant properties of tetrazepam are most likely due to a reduction of calcium influx.Small amounts of diazepam as well as the active metabolites of diazepam are produced from metabolism of tetrazepam.