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Charles University, Faculty of Pharmacy in Hradec Králové Department of: Pharmaceutical Technology Mentor: doc. PharmDr. Jitka Mužíková, Ph.D. Conzultant: Mgr. Thao Tranová Student: Magdaléna Prejdová Title of Thesis: Study of tableting materials and tablets from spray-dried mixtures of the drug and excipients This work deals with the influence of three different size fractions of spray dried powders (SDP) on flow properties and on the compressibility of tablets. The aim was to obtain orodispersible tablets with a poorly soluble drug aprepitant. Different particle sizes were obtained by different nitrogen flow rates during spray drying. The SDP were composed of aprepitant and hypromellose phthalate in a 1:2 ratio. The structure of the SDP was tested by scanning electron microscopy. SPD were part of directly compressible tabletting materials or tabletting materials made from granulates. All tablets contained the co-processed dry binder Prosolv® ODT G2, the sweetener sucralose and the lubricant magnesium stearate. The tested parameters of powders and tabletting materials were particle size and flow properties. The tablets were compressed by material testing machine the Zwick/Roell with a compression force of 2.5 kN. The compression process was evaluated by using the energy profile of the compression... |
