06. April 2017

Abstract The morphology and polymorphism of mannitol particles were controlled during spray drying with the aim of improving the aerosolization properties of inhalable dry powders. The obtained microparticles were characterized using scanning electron microscopy, infrared spectroscopy, differential scanning calorimetry, powder X-ray diffraction and inhaler testing with a next generation impactor. Mannitol particles of varied α-mannitol content and surface roughness were prepared via spray...

26. March 2017

Aim: The therapeutic efficiency of a formulation will depend on various crucial parameters such as solubility of the drug, stability of the compound, excipients used in the formulation of finished dosage form, and the manufacturing technology used for the fabrication of finished dosage form. This research work is an attempt to enhance the solubility and dissolution rate by fabricating solid dispersion (SD) of the bosentan using hydrophilic polymers, soluplus, and kollidon VA 64. SDs of...

08. November 2016

This study assesses the solid-solid interactions between the commercial form of Ketoprofen (KET), a non- steroidal anti-inflammatory drug of the propionic acid class, and several widely used pharmaceutical excipients. The work was carried out on drug-excipient mixtures, in 1:1 (w:w) ratio, blended in an agate mortar at room temperature. The compatibility/incompatibility of KET with the proposed excipients was highlighted by the most commonly used analytic methods: differential scanning...

28. May 2016

Microscale freeze-drying makes rapid process cycles possible for early-stage formulation development. To investigate the effects of equipment scale and cooling rate on the solid state properties and the protein’s secondary structure of a sample, three binary formulations of catalase were prepared and freeze-dried with sucrose, mannitol, or (2-hydroxypropyl)-β-cyclodextrin (HP-β-CD). The protein’s secondary structure was assessed using attenuated total reflection Fourier transform infrared...

06. August 2015

Drug excipient physicochemical characterization is a systematic approach towards design of therapeutically active and stable dosage forms. The rapid advancements in novel drug delivery systems have led to an interest by formulation scientists in the role and functionality of the excipients. Fourier transform infrared spectroscopy (FTIR), Differential scanning calorimetry (DSC), and Powder X-ray diffractometry (XRD) analytical techniques of high resolution were used to get an insight on solid...

12. June 2015

he principal component of many solid pharmaceutical formulations and indeed of dry powder inhalers, rather than being an active pharmaceutical ingredient (API), is most likely to be lactose. It is an excipient that fulfils a number of functions including those of diluent, flow-aid and API carrier. More Pulmonary Drug Delivery: Advances and Challenges Published Online: 29 MAY 2015 DOI: 10.1002/9781118799536.ch7