Intraocular administration of tetramethylpyrazine hydrochloride to rats: a direct delivery pathway for brain targeting?
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The purpose of this study was to compare the pharmacokinetic profile of tetramethylpyrazine hydrochloride (TMPH) in rat plasma and tissues following intravenous (iv), intragastric (ig) and intraocular (io) administration. After io, ig and iv administration of ... ...