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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

The effect of food on the bioavailability of ebastine.

Two studies were performed to characterize the influence of food on the bioavailability of the current formulation of ebastine tablets. Study 1 was an open label, randomized, three-period, crossover food effect study where 18 healthy male volunteers received 10 mg ebastine after an overnight fast, a low-fat breakfast, and a high-fat breakfast. Study 2 was an open label, randomized, two period crossover food effect study where 12 healthy male volunteers received 20 mg ebastine after both an overnight fast and a high-fat breakfast. Plasma samples were obtained at selected times and analyzed for ebastine and carebastine, the active metabolite of ebastine, using a validated high-performance liquid chromatography assay. Biopharmaceutic parameters for carebastine, area under the plasma concentration-time curves (AUC (0-infinity)), and maximum plasma concentrations (C ( max ) ), were estimated using noncompartmental techniques and analyzed for statistical differences. AUC (0-infinity) and C(max estimates were 40%-50% and 30%-40% higher under fed conditions as compared with fasting conditions. The time to reach maximum concentrations (T(max)), the terminal elimination rate (K(e) ), and the half-life (t(1/2) ) were not significantly altered by the ingestion of a low-fat or high-fat meal. Statistical analyses of the natural logarithmic transformed data for AUC ((0-infinity) and C(max) also demonstrated significant differences between fasted and fed (low-fat and high-fat) conditions. This indicates that food had a statistically significant effect on the rate and extent of carebastine formation. Therefore, it may be concluded that administration with food maximizes the bioavailability of carebastine.[1]

References

  1. The effect of food on the bioavailability of ebastine. Pentikis, H.S., Huang, M.Y., Dorr, M.B., Heald, D.L. American journal of therapeutics. (1997) [Pubmed]
 
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