Stable nanocolloids of poorly soluble drugs with high drug content prepared using the combination of sonication and layer-by-layer technology

2008 ◽  
Vol 128 (3) ◽  
pp. 255-260 ◽  
Author(s):  
Anshul Agarwal ◽  
Yuri Lvov ◽  
Rishikesh Sawant ◽  
Vladimir Torchilin
2019 ◽  
Vol 9 (1-s) ◽  
pp. 185-195
Author(s):  
SANTOSH KUMAR RADA ◽  
T. Naga Satya Yagnesh

Objective: To enhance the solubility of poorly soluble drugs by using 23 factorial design in the formulation of fast dissolving tablets by employing starch oxalate as a superdisintegrant. Methods: Starch oxalate was synthesized by gelatinization process. The physical and micromeritic properties were performed to evaluate the synthesized starch oxalate. By using 23 factorial design, atenolol fast dissolving tablet was prepared by employing starch oxalate as a superdisintegrant in different proportions in each case by direct compression method. In the evaluation of fast dissolving tablets the drug content, hardness, friability, disintegration time and other dissolution characteristics were utilized. Results: The starch oxalate prepared was found to be fine, free-flowing completely amorphous powder. The compatibility between atenolol and starch oxalate were studied and showed no interaction. The drug content, hardness, and friability have been effective with regard to all the formulated fast dissolving tablets employing starch oxalate. The optimised formulation F8 has the least disintegration time i.e., 24±0.06s. The In–vitro wetting time was less (i.e., 28s) in optimized formulation F8. The water absorption ratio of the formulated tablets was found to be more in F8 formulation 94.42±0.18%. The cumulative drug dissolved in the optimized formulation F8 was found to be 98.70±0.24% in 5 min. Conclusion: The dissolution efficiency of atenolol was enhanced when starch oxalate was found to be a superdisintegrant when combined with sodium starch glycolate, crospovidone and, hence to provide immediate release of the formulated fast dissolving tablets contained drug it could be used.


2019 ◽  
Vol 9 (01) ◽  
pp. 15-20
Author(s):  
B Pandey ◽  
A B Khan

The aim of the review was to explore the necessity, advantages and different techniques of oral films for enhancing solubility of poorly soluble drugs with an emphasis on the newer, state-of the art technologies, such as 3D printing and hot-melt extrusion (HME). The historical background of oral films is presented along with the regularly used techniques. The modern approach of quality-by-design (QbD) is unravelled, identifying appropriate critical process parameters (CPP) and applied to oral films. A section is devoted modern technologies such as 3D printing and HME of oral films. Oral films are innovative formulations by which poorly soluble drugs have been founds to give positive results in enhancing their solubility and dissolution characteristics. With modern sophisticated techniques, precise mass production of oral films has been given a thrust. Oral films have better patient compliance, improved biopharmaceutical properties, improved efficacy, and better safety. By applying QbD and implementation of modern technologies the newer generation of oral films are yielding promising results


2019 ◽  
Vol 15 (6) ◽  
pp. 576-588 ◽  
Author(s):  
Beibei Yan ◽  
Yu Gu ◽  
Juan Zhao ◽  
Yangyang Liu ◽  
Lulu Wang ◽  
...  

: According to the drug discovery, approximately 40% of the new chemical entities show poor bioavailability due to their low aqueous solubility. In order to increase the solubility of the drugs, self-micro emulsifying drug delivery systems (SMEDDS) are considered as an ideal technology for enhancing the permeability of poorly soluble drugs in GI membranes. The SMEDDS are also generally used to enhance the oral bioavailability of the hydrophobic drugs. At present, most of the self-microemulsion drugs are liquid dosage forms, which could cause some disadvantages, such as the low bioavailability of the traditional liquid SMEDDS. Therefore, solid self-micro emulsifying drug delivery systems (S-SMEDDS) have emerged widely in recent years, which were prepared by solidifying a semi-solid or liquid self-emulsifying (SE) ingredient into a powder in order to improve stability, treatment and patient compliance. The article gives a comprehensive introduction of the study of SMEDDS which could effectively tackle the problem of the water-insoluble drug, especially the development of solidification technology of SMEDDS. Finally, the present challenges and the prospects in this field were also discussed.


Lab on a Chip ◽  
2021 ◽  
Author(s):  
Peer Erfle ◽  
Juliane Riewe ◽  
Heike Bunjes ◽  
Andreas Dietzel

Poorly soluble drugs can be incorporated in lipid carrier nanoparticles to achieve sufficient bioavailability and open up diverse routes of administration. Preparation by antisolvent precipitation in microfluidic systems enables excellent...


Author(s):  
Adryana Rocha Clementino ◽  
Giulia Pellegrini ◽  
Sabrina Banella ◽  
Gaia Colombo ◽  
Laura Cantù ◽  
...  

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