ISSN:
1432-2072
Keywords:
N-Desmethyldiazepam
;
Diazepam
;
Plasma Concentrations
;
Untoward Effects
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract In the course of a previous study on the pharmacokinetics and effects of diazepam in anxiety patients, it was hypothesized that the N-desmethyl derivative is a disturbing agent causing side effects. The present study served to test the validity of this assumption. Diazepam and N-desmethyl-diazepam, the latter as a separate drug, were orally administered to 6 subjects, each drug during 7 days, 15 mg daily in divided doses. Using a randomized, placebo controlled, double-blind design, subjective and observer ratings of a wide range of clinical effects were made. Plasma levels of the benzodiazepine compounds were determined by the G.L.C. method. Results showed that steady state plasma levels were reached on the 5th day; that N-desmethyldiazepam, considering its lower clearance rates, is a longer acting drug than diazepam; that both substances induce hypnosedative effects, mood changes, and somatic disturbances and facilitate sexual behaviour in normals; that desmethyldiazepam is a more effective hypnosedative and mood-lowering substance as compared to equal doses of diazepam. Further comparisons in anxiety patients are recommended in order to find out if the specific desmethyldiazepam effects are therapeutically favourable or disturbing.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00421024
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