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Search for technological reasons to develop a capsule or a tablet formulation with respect to wettability and dissolution.

Abstract：

:Proquazone, a poorly wettable compound, was used as a model drug in the search for reasons to develop a capsule or tablet formulation. The capsules were filled with proquazone as active ingredient, with lactose monohydrate (200 mesh) as filler and with magnesium stearate as lubricant. The tablet was made out of a granulate as internal phase which consisted of proquazone as active ingredient, lactose as filler, corn starch as disintegrant and PVP as a binding agent. The external phase consisted of magnesium stearate and corn starch. The concentration of proquazone in the capsule and in the tablet formulation was varied. The capsule formulations showed a significantly slower dissolution of the drug substance than the tablet formulations especially for a high-drug load. Independently of the drug load, only the tablet formulation showed a high-dissolution rate. Thus, concerning drug load, only the tablet formulations showed to be robust. It became clear that proquazone needs to be formulated as a granulate or a tablet to achieve a fast dissolution rate. Thus, a poorly wettable drug, especially when it is found in high concentrations, can have direct impact on the decision to develop a tablet or a capsule formulation.

journal_name

Int J Pharm

journal_title

International journal of pharmaceutics

authors

von Orelli J,Leuenberger H

doi

10.1016/j.ijpharm.2004.09.006

keywords:

subject

Has Abstract

pub_date

2004-12-09 00:00:00

pages

135-45

issue

1-2

eissn

0378-5173

issn

1873-3476

pii

S0378-5173(04)00539-3

journal_volume

287

pub_type

杂志文章

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