Abstract
Venlafaxine is a newer antipsychotic drug which shows first pass effect. Cress seed is also called as garden cress or green salad. This study examined the mechanical (gel strength, adhesiveness) and rheological properties of cress seed mucilage based gels that contain different ratios of carbopol 934 P (0.5–1.5%). In addition, diffusion of venlafaxine from gel formulations was evaluated. The selected formulation was further analyzed for pharmacokinetic parameters in rabbits. All formulations exhibited pseudoplastic flow with thixotropy. Formulation F5 showed the Cmax of 24.19 ± 0.72 ng/ml by buccal route of administration and 17.98 ± 1.15 ng/ml by oral route of administration. The bioavailability of F5 by buccal route was 54.44% and that of by oral route was 39.60%. A combination of the cress seed mucilage and carbopol 934 P resulted in a prolonged and higher venlafaxine delivery by buccal route of administration.
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Authors are grateful to Management and Principal (R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur) for providing necessary facilities to carry out this work.
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Nerkar, P.P., Gattani, S.G. Cress seed mucilage based buccal mucoadhesive gel of venlafaxine: in vivo, in vitro evaluation. J Mater Sci: Mater Med 23, 771–779 (2012). https://doi.org/10.1007/s10856-011-4529-7
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DOI: https://doi.org/10.1007/s10856-011-4529-7