Physicochemical characterization of atorvastatin calcium/ezetimibe amorphous nano-solid dispersions prepared by electrospraying method

2016 ◽  
Vol 45 (6) ◽  
pp. 1138-1145 ◽  
Author(s):  
Azin Jahangiri ◽  
Mohammad Barzegar-Jalali ◽  
Yousef Javadzadeh ◽  
Hamed Hamishehkar ◽  
Khosro Adibkia
Keyword(s):  
Solid Dispersions ◽  
Physicochemical Characterization ◽  
Atorvastatin Calcium

Physicochemical Characterization of Solid Dispersions of Cefdinir with PVP K-30 and PEG 4000

2010 ◽  
Vol 3 (2) ◽  
pp. 948-956
Author(s):  
Kumar P ◽  
S Kumar ◽  
A Kumar ◽  
M Chander
Keyword(s):  
Solid Dispersions ◽  
Physicochemical Characterization ◽  
Drug Carriers ◽  
Dissolution Properties ◽  
Rate Of Dissolution ◽  
Peg 4000 ◽  
Release Studies ◽  
Crystalline Nature ◽  
Physical Mixtures

The purpose of this study was to prepare and characterize solid dispersions of the antibacterial agent Cefdinir with PEG 4000 and PVP K-30 with a view to improve its dissolution properties. Investigations of the properties of the dispersions were performed using release studies, X-ray powder diffraction (XRD) and Fourier transform infrared (FTIR). The results obtained showed that the rate of dissolution of Cefdinir was considerably improved when formulated in solid dispersions with PVP K-30 and PEG 4000 as compared with pure drug and physical mixtures. The results from XRD studies showed the transition of crystalline nature of drug to amorphous form, while FTIR studies demonstrated the absence of drug-carriers interaction.

Development and physicochemical characterization of saquinavir mesylate solid dispersions using Gelucire 44/14 or PEG 4000 as carrier

2013 ◽  
Vol 36 (9) ◽  
pp. 1113-1125 ◽  
Author(s):  
Thiago Caon ◽  
Ricardo Augusto Konig ◽  
Ariadne Cristiane Cabral da Cruz ◽  
Simone Gonçalves Cardoso ◽  
Carlos Eduardo Maduro Campos ◽  
...  
Keyword(s):  
Solid Dispersions ◽  
Physicochemical Characterization ◽  
Peg 4000

scholarly journals Development and physicochemical characterization of solid dispersions containing praziquantel for the treatment of schistosomiasis

2016 ◽  
Vol 127 (2) ◽  
pp. 1693-1706 ◽  
Author(s):  
P. R. Dametto ◽  
A. C. Dametto ◽  
L. Polese ◽  
C. A. Ribeiro ◽  
M. Chorilli ◽  
...  
Keyword(s):  
Solid Dispersions ◽  
Physicochemical Characterization

scholarly journals DEVELOPMENT OF AMORPHOUS BINARY AND TERNARY SOLID DISPERSIONS OF NATEGLINIDE FOR IMPROVED SOLUBILITY AND DISSOLUTION

2020 ◽  
pp. 106-112
Author(s):  
SHRADHA S. TIWARI ◽  
SHAILESH J. WADHER ◽  
SURENDRA G. GATTANI
Keyword(s):  
Solid Dispersion ◽  
Water Solubility ◽  
Solid Dispersions ◽  
Physicochemical Characterization ◽  
Dissolution Behavior ◽  
Enhanced Solubility ◽  
Ft Ir ◽  
Ternary Solid Dispersion ◽  
Ternary Solid Dispersions

Objective: Nateglinide is a commonly used oral hypoglycemic, biopharmaceutical classification system Class II drug, which shows relatively poor water solubility and variable bioavailability. The objective of the present investigation was to develop the binary and ternary solid dispersions of nateglinide for improved solubility and dissolution. Methods: Nateglinide solid dispersions were prepared by a common solvent evaporation method. Polymers like soluplus, kolliphor P188, sylloid 244FP, gelucire 48/16, affinisol (HPMCAS), HPβCD, βCD were used in different combinations. The physicochemical characterization of the optimized ternary dispersion was studied by using FT-IR, DSC, and PXRD. Solubility and dissolution behavior of all dispersions were studied. Result: From all prepared ternary solid dispersions, nateglinide dissolution was significantly faster than pure nateglinide. With ternary solid dispersion of NTG, soluplus and kolliphor P188 there was a big improvement in solubility and dissolution. This combination enhanced the solubility of NTG by 23 folds. Another ternary dispersion of NTG with soluplus and gelucire 48/16 enhanced solubility by 25 fold. Conclusion: Ternary solid dispersion found superior over binary dispersions. For the ternary dispersions, showing the best solubility, tablets were prepared. Dissolution and drug release from the formulated tablet was as good as a marketed product.

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