Journal
INTERNATIONAL JOURNAL OF PHARMACEUTICS
Volume 341, Issue 1-2, Pages 20-25Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijpharm.2007.03.041
Keywords
Gastrodin; pharmacokinetics; nasal administration; cerebrospinal fluid; plasma
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The pharmacokinetic behavior of Gastrodin in rat plasma and cerebrospinal fluid (CSF) after intranasal and intravenous administration (50 mg kg(-1)) was investigated. Intranasal administration of Gastrodin provided a comparable AUC in CSF compared with the intravenous administration. But Gastrodin level in plasma was very low. The ratios of AUC values of intranasal to intravenous administration were 8.85% and 105.5% in plasma and CSF, respectively. The drug targeting index (DTI) was 12.34. In conclusion, intranasal administration of Gastrodin is a promising alternative to traditional administration. Olfactory mucosa did present another pathway for transport Gastrodin to the brain. (c) 2007 Elsevier B.V. All rights reserved.
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