Preparation of extended release solid dispersion formulations of tacrolimus using ethylcellulose and hydroxypropylmethylcellulose by solvent evaporation method

2016 ◽  
Vol 68 (3) ◽  
pp. 316-323 ◽  
Author(s):  
Daisuke Tsunashima ◽  
Kazunari Yamashita ◽  
Ken-ichi Ogawara ◽  
Kazuhiro Sako ◽  
Kazutaka Higaki
Keyword(s):  
Solid Dispersion ◽  
Extended Release ◽  
Solvent Evaporation ◽  
Solvent Evaporation Method ◽  
Evaporation Method

Formulation Design and Optimization of Repaglinide Solid Dispersions by Central Composite Design

2018 ◽  
Vol 11 (6) ◽  
pp. 4337-4348
Author(s):  
Bhikshapathi D. V. R. N. ◽  
Srinivas I
Keyword(s):  
Central Composite Design ◽  
Dissolution Rate ◽  
Solid Dispersion ◽  
Solid Dispersions ◽  
Solvent Evaporation ◽  
Release Mechanism ◽  
Solvent Evaporation Method ◽  
Onset Of Action ◽  
Evaporation Method ◽  
Central Composite

Repaglinide is a pharmaceutical drug used for the treatment of type II diabetes mellitus, it is characterized with poor solubility which limits its absorption and dissolution rate and delays onset of action. In the present study, immediate release solid dispersion of repaglinide was formulated by solvent evaporation technique. Repaglinide solid dispersions were prepared using PEG 8000, Pluronic F 127 and Gelucire 44/14 by solvent evaporation method. A 3-factor, 3-level central composite design employed to study the effect of each independent variable on dependent variables. FTIR studies revealed that no drug excipient interaction takes place. From powder X-ray diffraction (p-XRD) and by scanning electron microscopy (SEM) studies it was evident that polymorphic form of repaglinide has been converted into an amorphous form from crystalline within the solid dispersion formulation. The correlation coefficient showed that the release profile followed Higuchi model anomalous behavior and hence release mechanism was indicative of diffusion. The obtained results suggested that developed solid dispersion by solvent evaporation method might be an efficacious approach for enhancing the solubility and dissolution rate of repaglinide.

scholarly journals Water Solubility Enhancement of Atorvastatin by Solid Dispersion Method

1970 ◽  
Vol 3 (2) ◽  
pp. 43-46
Author(s):  
Riaz Uddin ◽  
Farzana Ali ◽  
Subrata Kumar Biswas
Keyword(s):  
Key Words ◽  
Solid Dispersion ◽  
Water Solubility ◽  
Solid Dispersions ◽  
Solubility Enhancement ◽  
Solvent Evaporation ◽  
Solvent Evaporation Method ◽  
Dispersion Method ◽  
Evaporation Method

Key Words: Solid dispersions; solvent evaporation method; atorvastatin; HPMCDOI: http://dx.doi.org/10.3329/sjps.v3i2.8036 S.J. Pharm. Sci 3(2): 43-46

scholarly journals Physicochemical Characterization and Dissolution Enhancement of Bilastine by Solid Dispersion

2021 ◽  
Vol 69 (1) ◽  
Author(s):  
Sanjesh G. Rathi ◽  
Dhruv B. Chaudhari
Keyword(s):  
Solid Dispersion ◽  
Solid Dispersions ◽  
Physicochemical Characterization ◽  
Solvent Evaporation ◽  
Dissolution Enhancement ◽  
Solvent Evaporation Method ◽  
In Vitro Drug Release ◽  
Evaporation Method ◽  
Pvp K30

The solid dispersions of Bilastine with HPMC, PVP K30 and HPC have been prepared in different weight ratios by using solvent evaporation method. DSC was used to characterize the samples of solid dispersions and pure drug. Drug found compatible with the excipients. The highest improvements in solubility and in-vitro drug release were observed in solid dispersion prepared with HPC (F14) by solvent evaporation method. The increased dissolution rate of drug from solid dispersion may be due to surface tension lowering effect of polymer to the medium and increased wettability and dispersibility of drug. Hence, F14 Solid dispersion with the HPC carrier considered as most satisfactory among all solid dispersions.

scholarly journals SOLID DISPERSION TECHNIQUE TO ENHANCE THE SOLUBILITY AND DISSOLUTION OF FEBUXOSTAT AN BCS CLASS II DRUG

2019 ◽  
Vol 11 (1) ◽  
pp. 241 ◽  
Author(s):  
D. Christopher Vimalson ◽  
S. Parimalakrishnan ◽  
N. S. Jeganathan ◽  
S. Anbazhagan
Keyword(s):  
Solid Dispersion ◽  
Solid Dispersions ◽  
Solvent Evaporation ◽  
Water Soluble ◽  
Fusion Method ◽  
Solvent Evaporation Method ◽  
Evaporation Method ◽  
Drug Content ◽  
Bcs Class Ii ◽  
Percentage Yield

Objective: The present study was aimed to enhance the solubility of poorly water-soluble drug (BCS Class II) Febuxostat using water-soluble polymers.Methods: Pre-formulation studies like drug excipient compatibility studies by Fourier-transform infrared spectroscopyDifferential scanning calorimetry and determination of saturation solubility of drug individually in various media like distilled water and pH 7.4 phosphate buffer. Solid dispersions of Febuxostat was prepared using Polyethylene glycol (PEG 6000) (fusion method) and Polyvinyl pyrrolidone (PVP K30) (solvent evaporation method) in various ratios like 1:1, 1:2, 1:3 and 1:4 separately. The formulated solid dispersions were evaluated for percentage yield, drug content and in vitro dissolution studies.Results: From the results of pre-formulation studies it was revealed that there was no interaction between drug and excipients and the pure drug was poorly soluble in water. The percentage yield of all formulations was in the range of 54-78 %, and drug content was in the range of 43-78 mg. The solid dispersion containing polyvinylpyrrolidone K 30 in 1:4 ratio showed the highest amount of drug release at the end of 30 min than other formulations.Conclusion: Finally it was concluded that solid dispersion prepared with PVP K-30 in 1:4 ratio by solvent evaporation method was more soluble than by fusion method.

scholarly journals ENHANCEMENT OF SOLUBILITY AND DISSOLUTION OF IBUPROFEN BY SOLID DISPERSION TECHNIQUE AND FORMULATION OF SUSTAINED RELEASE TABLETS CONTAINING THE OPTIMISED BATCH OF SOLID DISPERSION

2017 ◽  
pp. 37-44
Author(s):  
ABHIK KAR ◽  
ABDUL BAQUEE AHMED
Keyword(s):  
Sustained Release ◽  
Solid Dispersion ◽  
Solid Dispersions ◽  
Solvent Evaporation ◽  
Poloxamer 407 ◽  
In Vitro Dissolution ◽  
Solvent Evaporation Method ◽  
Evaporation Method ◽  
Sustained Release Tablets

Objective: The present study was aimed to enhance the solubility of poorly water soluble drug Ibuprofen using solid dispersion technique and to develop sustained release tablets containing solid dispersion granules of the optimized batch. Ibuprofen is a non-steroidal anti-inflammatory drug (NSAID) with analgesic, antipyretic, and anti-inflammatory propertiesMethods: Solid dispersions of Ibuprofen were prepared by using PEG 20000 and Poloxamer 407 in different weight ratios by fusion and solvent evaporation method. Drug-carrier physical mixtures were also prepared. Solid dispersions were characterized by saturation solubility, drug content, in vitro dissolution, FTIR and DSC analysis. Solid dispersion formulation, SDF9 (PEG 20000 and Poloxamer 407, 1:3:3) prepared by solvent evaporation method was considered as the optimized batch. Sustained release tablets containing the solid dispersion granules of the optimized batch were prepared by direct compression method using HPMC K100M at three concentrations (10%, 14%, 18% w/w). The prepared formulations were evaluated for hardness, thickness, weight variation, friability, in vitro dissolution studies and release kinetics modelling.Results: Solid dispersion formulation, SDF9showed 95.09% drug release in 60 min and considered as the optimized batch. Tablet formulation, FT3 (HPMC K100M 18% w/w) showed 96% drug release for 12 h.Conclusion: Solid dispersions of ibuprofen using a combination of PEG 20000 and poloxamer 407 by solvent evaporation method may result in higher aqueous solubility of the drug. Also sustained release tablets containing solid dispersion granules of ibuprofen, using HPMC K100M may be a promising approach to extend the release rate of the drug from the solid dispersion for 12 h.

scholarly journals FORMULATION AND EVALUATION OF MOUTH DISSOLVING TABLET OF MELOXICAM USING NATURAL SUPERDISINTEGRANTS

2020 ◽  
pp. 197-203
Author(s):  
CHETAN V PAWAR ◽  
SWATI S MUTHA ◽  
SAGAR V BHISE ◽  
PAYAL D BORAWAKE
Keyword(s):  
Solid Dispersion ◽  
Oral Absorption ◽  
Solvent Evaporation ◽  
Water Soluble ◽  
Taste Masking ◽  
Lauryl Sulfate ◽  
Solvent Evaporation Method ◽  
Powder Preparation ◽  
Dispersion Method ◽  
Evaporation Method

Objective: The objective of the present work was the preparation and evaluation of mouth dissolving tablets (MDTs) of meloxicam using natural superdisintegrants. Methods: Meloxicam is BCS Class II (low soluble, and high permeable) drug increasing the dissolution properties of the poorly water-soluble drug meloxicam using a solid dispersion method (solvent evaporation method). Solvent evaporation method using drug and carrier as polyethylene glycol (PEG)-6000 and PEG-15,000 the ratio of 1:1, 1:2 (drug:carrier), and acetone as solvent. In house prepared banana powder were used as natural superdisintegrant. Manufacturing of MDT was done by the direct compression method. In this MDTs, various excipients were used such as mannitol used as the diluent, sodium saccharin used as a sweetening agent, Avicel pH-102 used as a binding agent, and talc and sodium lauryl sulfate (SLS) used as lubricant and glidant. The best formula of the tablet was selected according to the disintegration time (DT) and friability tests. Results: The results have shown that an increase in the meloxicam solubility was obtained using solid dispersion with the solvent evaporation method using PEG-15000 as a carrier in the ratio of 1:2 (drug:carrier). Taste masking was also done by a solid dispersion method. Tablet prepared with in house prepared banana powder gave less DT (70 s) as compared to tablet prepared with branded banana powder (80 s), but formulation F5 failed in friability testing. Improved strength of tablet obtained using SLS (<1%) also showed an increase in the dissolution performance of the tablet in formulation F6. This F6 formulation having 10% natural super disintegrating agent (in house prepared banana powder) has shown 99% cumulative drug release within 18 min. It also passed the friability test. Conclusion: Accordingly, the solubility of meloxicam was successfully enhanced through solid dispersion with carrier PEG-15,000 and formulated as a MDT to improve its oral absorption. PEG has also been used as a taste masking agent in these formulations. It was concluded that in house banana powder had excellent DT as compared to branded banana powder. Banana powder is “economical” and “easily available” than other commonly used synthetic superdisintegrants. The process of banana powder preparation is eco friendly. The meloxicam MDT formulated with natural superdisintegrant in house prepared banana powder found to pass all pharmacopeial tests.

Development, characterization and solubility study of solid dispersion of Quercetin by solvent evaporation method

2017 ◽  
Vol 4 (9) ◽  
pp. 10128-10133 ◽  
Author(s):  
Vikas Verma ◽  
Pankaj Sharma ◽  
Jaya Sharma ◽  
Avneet Kaur Lamba ◽  
H.S. Lamba
Keyword(s):  
Solid Dispersion ◽  
Solvent Evaporation ◽  
Solvent Evaporation Method ◽  
Evaporation Method ◽  
Solubility Study
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