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Br J Clin Pharmacol. 1982 Mar;13(3):427-32.

Bioavailability of diazepam after intravenous, oral and rectal administration in adult epileptic patients.

Abstract

1 The absorption of single doses of diazepam in six adult epileptic subjects following intravenous, oral and rectal administration were studied in order to evaluate the usefulness of the latter in emergency situations in the adult. 2 Diazepam tablets (Valium, Roche) and rectal solution (Valium solution for intravenous administration) produced similar peak serum concentrations after delays of 15-90 min. 3 Two suppository formulations showed statistically significant differences in absorption characteristics. 4 Serum diazepam levels above 400 ng ml-1 (suggested to be necessary for a satisfactory anticonvulsant effect) were reached in only a few subjects after rectal doses of 10-20 mg of solution, and then usually after a delay of over 2 h.

PMID:
7059446
PMCID:
PMC1402110
[Indexed for MEDLINE]
Free PMC Article

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