Development and in Vitro-in Vivo Evaluation of Controlled Release Matrix Tablets of Desvenlafaxine

Shashidhar Reddy Dodda, Prakash Rao B

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DOI: 10.4236/pp.2012.31003                

Abstract

The objective of this investigation was to prepare extended release tablet containing matrix granules of Desvenlafaxine succinate monohydrate and to study its in vitro release and in vivo absorption. The design of dosage form was performed by choosing hydrophilic hydroxypropyl methyl cellulose (HPMC K100M), sodium carboxyl methyl cellulose (Blanose), microcrystalline cellulose (MCC) and lactose monohydrate polymers as matrix builders and polyvinyl pyrolidine (Kollidon K30) as granulating polymers. Granules were prepared by composing drug with HPMC K100M, sodium CMC, MCC and lactose monohydrate by spray drying method. Optimized formulation of Desvenlafaxine succinate monohydrate was formed by using 20% HPMC K100M, 26.6% MCC, 6.6% of sodium CMC (Blanose), 13.3% of lactose monohydrate and 5% ratio of Kollidon K30 as binder. Tablets were compressed with free flowing optimized granules of uniform drug content. This extended the release period up to 24 h in vitro study. Similarity factor and mean dissolution time were also reported to compare various dissolution profiles. The network formed by HPMC, MCC and Blanose had been coupled satisfactorily with the controlled resistance. Biopharmaceutical study of this optimized dosage form in rabbit model showed 24 h prolonged drug release in vivo. A close correlation (R2 = 0.9833) was established between the in vitro release and the in vivo absorption of drug. The results suggested that wet granulation with spray dried technique, is a suitable method to formulate sustained release Desvenlafaxine succinate monohydrate and it can Perform therapeutically better than conventional immediate release dosage form.

Keywords

Desvenlafaxine; Pharmacokinetics; ER Matrix Tablet; In Vitro Kinetics; Depressio

Conflicts of Interest

The authors declare no conflicts of interest.

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