Abstract
Purpose The objective of the current study was to determine the ability of some antiemetic compounds to cross the blood–brain barrier (BBB) and thereby to determine possible side effects of compounds for the central nervous system (CNS). Methods We compared the brain penetration of some antiemetic compounds using an in vitro BBB model consisting in brain capillary endothelial cells co-cultured with primary rat glial cells. Results This study clearly demonstrated that the metopimazine metabolite, metopimazine acid, has a very low brain penetration, lower than metopimazine and even less than the other antiemetic compounds tested in this study. Conclusions The poor brain penetration of metopimazine acid, metopimazine biodisponible form, seems very likely related to the clinically observed difference in therapeutic and safety profile.
Published Version
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