Fabrication and characterization of nanostructured lipid carrier system for effective delivery of poorly water-soluble drug quetiapine fumarate

The aim of present study is to investigate the potential of nanostructured lipid carriers (NLCs) in improving the oral bioavailability of quetiapine fumarate, a second-generation antipsychotic drug. Quetiapine Fumarate (QF) loaded NLC were prepared by hot homogenization followed by an ultrasonication method. Response surface methodology - central composite design (CCD) was used to systemically examine the influence of concentration of capmul MCM EP, concentration of poloxamer 188 and concentration of egg lecithin on particle size (PS) and % entrapment efficiency (% EE) and to optimize the NLC formulation. The CCD consists of three factored design with five levels, plus and minus alpha (axial points), plus and minus 1 (factorial points) and the centre point. A mathematical relationship between variables was created by using Design Expert software Version 12. The statistical evaluations revealed that three independent variables were the important factors that affected the PS and % EE of QF loaded NLC. The best fitted mathematical model was linear and quadratic for PS and % EE respectively. The optimized formulations found with 218.1±0.14nm of PS and 93±0.16% of % EE. Results illustrated the superiority of developed QF loaded NLC formulation as a stable drug delivery system, providing better bioavailability with the possibility of better treatment for psychological disorders.

Review on Polymer Based Nanoparticles for Increase the Bioavalibilty of Poorly Water Soluble Drug

In this review study about the polymeric nanoparticles and how polymer based nanoparticles increase bioavailability of less water soluble drugs. Polymeric nanoparticles have a matrix of biodegradable and biocompatible polymers of synthetic and natural origin. Polymer based nanoparticles are very useful for increase the solubility of the poor water-soluble drugs by decrease the particles size. Polymeric nanoparticles are very useful for targeting the drug to the specific site. Polymeric nanoparticles are also used to maintain and control the release of the drug. In present review study on the type of polymer used for the preparation of the polymer based nanoparticles. The choice of method depends on a number of factors, such as, particles size, area of application and characterization of polymeric nanoparticles.

Formulation and Evaluation of Orodispersible Tablet of poorly water Soluble Drug ‘Fenofibrate’ by Using Solubility Enhancement Technique

In the recent years scientific and technological advancements have been made in the research and development of oral drug delivery systems. The aim of this study was to formulate and evaluate of orodispersible tablets by direct compression for fenofibrate by using super fast disintegrating agents like croscarmellose sodium. The use of super disintegrant and excipient for preparation of fast disintegrating is highly effective and commercially feasible. In the present investigation poorly water soluble drug is one of the most important parameters of oral formulations sucessfully developed fenofibrate was using solvent evaporation method drug: PEG 6000 in (1:5 w/w). The formulation F7 was the optimized formula that showed satisfactory results with various physicochemical evaluation parameters like thickness, hardness, weight variation, friability, drug content, % drug release almost 79.98% within 15 min. and it was follow the maximum higuchi release kinetics that regression coefficient values ‘r2’= 0.995.

Novel Application of Mixed Solvency Concept to Develop and Formulate Dry Powder Injection for Reconstitution of a Poorly Water Soluble Drug, Amlodipine Besylate and their Evaluations

In the recent generation of pharmaceutical research, it has been observed that many newly designed and discovered drug products have less water solubility. Thus, leading to difficulties in several developmental, manufacturing and administrative processes. Furthermore, the clinical trials of these drugs have witnessed a great failure due to their poor pharmacokinetics. The lineup of our research work was promotion of mixed solvency concept by formulating the dry powder injection for reconstitution of poorly water-soluble drug amlodipine besylate by decreasing the solubilisers concentration in small proportion for expected synergistic enhancement of drug solubility in water. Solubilisers used are sodium benzoate, sodium caprylate, PVPK-25, sodium citrate, niacinamide, poloxamer 407, sodium acetate, L-arginine, benzoic acid, β-cyclodextrin and lysine hydrochloride to developed the dry powder injection for reconstitution of amlodipine besylate. The reconstitution time of amlodipine besylate injections were found 58 sec, 36 sec and 1 min 10 sec in selected blends. This drug is slightly soluble in water, and it comes in various forms, including tablets and other oral dosage forms. However, no amlodipine besylate dry powder injection or ready-made injections are currently available in the market. Dry powder injection for reconstitution of amlodipine besylate was formulated successfully and mixed solvency concept has been successfully employed. Keywords: Mixed solvency concept, Amlodipine besylate, Dry powder injection for reconstitution, Solubilisers, Solubility.