Effect of isomalt as novel binding agent on compressibility of poorly compactable paracetamol evaluated by factorial design

Tablets containing paracetamol were prepared by wet granulation. The model drug, paracetamol (API) and the diluent, milled isomalt (IM) were applied in different ratios where the granulation liquid was kept constant in each sample. The purpose of the study was to investigate the effect of wet granulation with milled isomalt on the tabletting properties of poorly compressible paracetamol. The results of tabletting process and the tablet characteristics were evaluated with 32 type face-centered full factorial design. The API:IM ratio (X1) and compression force (X2) were selected as independent variables. The dependent variables were as follows: the parameters of the tabletting process – lubrication coefficient (R-value), relative elasticity, friction work – and characteristics of the dosage form such as tablet hardness, friability, disintegration time, tensile strength. The results indicated that milled isomalt has an advantageous effect on both the process of compression and the tablet characteristics — due to its binder properties. Furthermore an optimal composition of the API and the diluent is to be found according to the compression process and the dosage form.

Tablets containing paracetamol were prepared by wet granulation applying milled isomalt as a novel pharmaceutical excipient. Compression process and tablet characteristics were evaluated with 32 type factorial design. Milled isomalt has advantageous effect on the compaction process and tablet characteristics — owing to its binder properties, an optimal composition of the API and the diluent is to be found as well.Figure optionsDownload as PowerPoint slide