Study of Dissolution Enhancement of Furosemide by Solid Dispersion Technique Using Different Polymer

2019 ◽  
Vol 9 (6) ◽  
pp. 329-338
Author(s):  
Md. Didaruzzaman Sohel3 ◽  
2011 ◽  
Vol 1 (2) ◽  
pp. 127-134 ◽  
Author(s):  
Patel Tejas . ◽  
Patel L.D . ◽  
Adeshara S. P . ◽  
Patel Timir . ◽  
Makwana Sunil . ◽  
...  

Author(s):  
Lna S. Hussein ◽  
Eman B. H. Al-Khedairy

Ebastine (EBS) is a non-sedating antihistamine with a long duration of action. This drug has predominantly hydrophobic property causing a low solubility and low bioavailability. Surface solid dispersions (SSD) is an effective technique for improving the solubility and dissolution rate of poorly soluble drugs by using hydrophilic water insoluble carriers. The present study aims to enhance the solubility and dissolution rate of EBS by using surface solid dispersion technique. Avicel® PH101, Avicel® PH 102, croscarmellose sodium(CCS) and sodium starch glycolate(SSG) were used as water insoluble hydrophilic carriers. The SSD formulations of EBS were prepared by the solvent evaporation method in different drug:  carrier weight ratios and evaluated for their percentage yield, drug content , water solubility, dissolution study in 0.1 N HCl, crystal lattice using powder  X-ray diffraction (PXRD) and Fourier Transform Infrared Spectroscopy (FTIR) for determination the drug-carrier interaction. Most of the prepared SSD formulas showed improvement of drug solubility. The best result was obtained with formula SSD16 (EBS:CCS 1:15) that showed high percentage yield (98.5%), high drug content (98.39%) and 8.2 fold increase in solubility compared to solubility of pure drug with improved dissolution rate. The drug was converted to amorphous form without chemical interaction with the carrier.


Author(s):  
Bhushan A. Bhairav ◽  
Lalit R. Jagtap ◽  
R. B. Saudagar

Objective: To design the study to improve the solubility and hence enhance the dissolution of hydrophobic drug Pioglitazone in order to increase its bioavailability.Methods: Solid dispersion of Pioglitazone using carriers Poloxomer 188 and HPβCD was formulated in different ratios by microwave induced fusion method. In particular, the Microwave technology has been considered in order to prepare an enhanced release dosage form for poorly water soluble drug Pioglitazone. Statistical Analysis: Their physicochemical characteristics and solubility were compared to the corresponding dispersions and marketed drug. Drug and polymer were further characterized by FTIR.Results: The results of FTIR revealed that no chemical interaction between the drug and the polymer exist.Conclusion: All the formulations showed a marked increase in drug release with the increase in the concentration of Poloxomer 188 and HPβCD. 


2013 ◽  
Vol 30 (1) ◽  
pp. 238-244 ◽  
Author(s):  
Suresh Bandari ◽  
Subash Jadav ◽  
Basanth Babu Eedara ◽  
Raju Jukanti ◽  
Prabhakar Reddy Veerareddy

2012 ◽  
pp. 31-35
Author(s):  
Truong Dinh Thao Tran ◽  
Ha Lien Phuong Tran ◽  
Nghia Khanh Tran ◽  
Van Toi Vo

Purposes: Aims of this study are dissolution enhancement of a poorly water-soluble drug by nano-sized solid dispersion and investigation of machenism of drug release from the solid dispersion. A drug for osteoporosis treatment was used as the model drug in the study. Methods: melting method was used to prepare the solid dispersion. Drug dissolution rate was investigated at pH 1.2 and pH 6.8. Drug crystallinity was studied using differential scanning calorimetric and powder X-ray diffraction. In addition, droplet size and contact angle of drug were determined to elucidate mechanism of drug release. Results: Drug dissolution from the solid dispersion was significantly increased at pH 1.2 and pH 6.8 as compared to pure drug. Drug crystallinity was changed to partially amorphous. Also dissolution enhancement of drug was due to the improved wettability. The droplet size of drug was in the scale of nano-size when solid dispersion was dispersed in dissolution media. Conclusions: nano-sized solid dispersion in this research was a successful preparation to enhance bioavailability of a poorly water-soluble drug by mechanisms of crystal changes, particle size reduction and increase of wet property.


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