Effect of Food on the Bioavailability of Bromazepam Following Oral Administration in Healthy Volunteers

Abstract

The effect of food on the rate and extent of bioavailability of bromazepam was examined in seven normal volunteers following a single oral dose of 10 mg bromazepam with 200 ml of water in the fasting and non-fasting states. Plasma concentrations of bromazepam were measured by high pressure liquid chromatography. A tmax value in a non-fasting state was prolonged from 2.3±0.3 (mean±S.E.M.) to 2.8±0.6 h but not significantly different (p > 0.05) whereas a Cmax value was significantly (p < 0.05) decreased from 259±12.7 (mean±S.E.M.) to 169±13.9 ng/ml. The area under the plasma concentration-time curve in the non-fasting state was also significantly (p < 0.05) decreased from 1844±145 (mean±S.E.M.) to 1233±98.1 ng∙h/ml after oral administration of bromazepam. © 1990, The Pharmaceutical Society of Japan. All rights reserved.