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Title: Intranasal administration of carbamazepine to mice: a direct delivery pathway for brain targeting
Authors: Serralheiro, Ana 
Alves, Gilberto 
Fortuna, Ana 
Falcão, Amílcar 
Keywords: Carbamazepine; Intranasal administration; Pharmacokinetics; Nose-to-brain drug delivery; Brain distribution; Mice
Issue Date: 18-Aug-2014
Publisher: Elsevier
Citation: SERRALHEIRO, Ana [et. al] - Intranasal administration of carbamazepine to mice: a direct delivery pathway for brain targeting. "European Journal of Pharmaceutical Sciences". ISSN 0928-0987. Vol. 60 (2014) p. 32–39
Serial title, monograph or event: European Journal of Pharmaceutical Sciences
Volume: 60
Abstract: The currently available antiepileptic drugs are typically administered via oral or intravenous (IV) routes which commonly exhibit high systemic distribution into non-targeted tissues, leading to peripheral adverse effects and limited brain uptake. In order to improve the efficacy and tolerability of the antiepileptic drug therapy, alternative administration strategies have been investigated. The purpose of the present study was to assess the pharmacokinetics of carbamazepine administered via intranasal (IN) and IV routes to mice, and to investigate whether a direct transport of the drug from nose to brain could be involved. The similar pharmacokinetic profiles obtained in all matrices following both administration routes indicate that, after IN delivery, carbamazepine reaches quickly and extensively the bloodstream, achieving the brain predominantly via systemic circulation. However, the uneven biodistribution of carbamazepine through the brain regions with higher concentrations in the olfactory bulb and frontal cortex following IN instillation, in comparison with the homogenous brain distribution pattern after IV injection, strongly suggests the involvement of a direct transport of carbamazepine from nose to brain. Therefore, it seems that IN delivery represents a suitable and promising alternative route to administer carbamazepine not only for the chronically use of the drug but also in emergency conditions.
ISSN: 0928-0987
DOI: 10.1016/j.ejps.2014.04.019
Rights: openAccess
Appears in Collections:FFUC- Artigos em Revistas Internacionais
I&D CNC - Artigos em Revistas Internacionais

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