Abstract:
A rapid, sensitive and specific radioreceptor assay for measuring benzodiazepines in plasma and other biological specimens without sophisticated equipement or methodology. This method is based on the competition between [ sH] diazepam or tritiated flunitrazepam and pharmacologically active benzodiazepines present in plasma, for binding sites on rat brain synaptosomal membranes. No interference is obtained with drag-free plasma or plasma samples containing high concentrations of other commonly used drugs. High correlations (r = 0.98;p