Solubility and dissolution enhancement of flurbiprofen by solid dispersion using hydrophilic carriers

Abstract

The intent of the current work is to study the effect of polyethylene glycol 8000 and polyethylene glycol 10000 as hydrophilic carriers on dissolution behaviour of flurbiprofen. In the present study, solvent evaporation method was used to prepare flurbiprofen solid dispersions and evaluated for physicochemical properties, drug-carrier compatibility studies and dissolution behaviour of drug. Solubility studies showed more solubility in higher pH values and formulations SD4 and SD8 were selected to prepare the fast dissolving tablets. FTIR and DSC study showed no interaction and drug was dispersed molecularly in hydrophilic carrier. XRD studies revealed that there was change in the crystallinity of the drug. The results of In vitro studies showed SD8 formulation confer significant improvement (p<0.05) in drug release, Q 20 was 99.08±1.35% compared to conventional and marketed tablets (47.31±0.74% and 56.86±1.91%). The mean dissolution time (MDT) was reduced to 8.79 min compared to conventional and marketed tablets (25.76 and 22.22 min.) indicating faster drug release. The DE (% dissolution efficiency) was increased by 2.5 folds (61.63%) compared to conventional tablets (23.71%). From the results, it is evident that polyethylene glycol solid dispersions in less carrier ratio may enhance the solubility and there by improve the dissolution rate of flurbiprofen.

Therapeutic Liquid Formulations Based on Low Transition Temperature Mixtures for the Incorporation of Anti-Inflammatory Drugs

“…Ketoprofen’s solubility in PBS was within the range reported by Cayman (500 mg/L) [ 60 ] and Shohin et al (3310 mg/L) [ 61 ] but lower than the one of Felton et al [ 56 ]. For flurbiprofen, the determined PBS solubility was in accordance with Sadik et al (130 ± 40 mg/L) [ 62 ] and Daravath et al (98 ± 10 mg/L) [ 63 ], despite the heterogeneity of values reported (98 to 4445 mg/L) [ 56 , 62 , 63 , 64 , 65 ]. The value obtained for naproxen was in agreement with Cayman (1000 mg/L) and Kumar et al (750 ± 250) mg/L, being lower than Felton and co-authors’ value (4259 mg/L).…”

Formulation and Evaluation of Mouth Dissolving Tablet of Meloxicam Using Natural Superdisintegrants

“…Here, the effect of a drug to carrier ratio on solubility was studied and it was found that a 1:2 ratio gave maximum solubility of meloxicam in distilled water. Higher is the molecular weight, higher is the solubility [22]. Therefore, PEG-15,000 was found to be more effective in enhancing solubility than PEG-6000 based on molecular weight.…”

Formulation and Evaluation of Flurbiprofen Solid Dispersions Incorporated Buccal Patches

“…The drug content estimated spectrophotometrically at 247nm. [15][16][17] Release Kinetic Study Different kinetic models such as zero order, first order, Higuchi, and Korsmeyer-Peppa's were used to infer the drug release rate from the buccal patches comprising of flurbiprofen solid dispersions. The drug release data was substituted in various kinetic models to envisage the kinetics and mechanism.…”