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Cholorpheniramine tannate complexes: Physicochemical, chemometric, and taste masking evaluation
Faculty
Pharmacy
Year:
2012
Type of Publication:
Article
Pages:
582-592
Authors:
Zidan, Ahmed S, Khan, Mansoor A, Rahman, Ziyaur, Khan, Saeed R, Reddy, Indra K
DOI:
10.1016/j.ijpharm.2012.07.037
Journal:
INTERNATIONAL JOURNAL OF PHARMACEUTICS ELSEVIER SCIENCE BV
Volume:
436
Research Area:
Pharmacology \& Pharmacy
ISSN
ISI:000308597600064
Keywords :
Cholorpheniramine maleate, Tannic acid, Complex, Solubility, Dissolution, Bitter taste, Chemometric model
Abstract:
The focus of present investigation was to evaluate the tannic acid (TA) complexes of cholorpheniramine maleate (CPM) and characterize it by a variety of physicochemical, dissolution, and electronic tongue methods. The complexes were prepared in various molar ratios by solvent evaporation method. They were characterized by spectroscopic, thermal, powder X-ray, electronic tongue, solubility and dissolution methods. FTIR (infrared red) spectra showed complex formation between the TA and CPM. Complex formation has significantly lowered the drug solubility and sustained its release for more than 24 h in phosphate buffer pH 6.8. On the contrary, the release was much faster in the presence of Avicel PH 113 in the same molar ratio complex. The complex formulation has suppressed the bitter taste of CPM as indicated by Euclidean distance in electronic tongue evaluation. NIR-CI (near infrared chemical imaging) showed lower skew value that indicated the homogenous distribution of formulation components. The chemometric models were also developed using the NIR data. The model based on second derivative data was better in predicting the TA and CPM loading as indicated by higher values of R, R-2 and lower values of root mean square error and standard errors. Furthermore, it has a better accuracy and less biased in comparison to other models. In conclusion, the CPM tannate has a sustained release behavior and excipients play a major role in modifying its release. Additionally, the complexes with varying molar ratio of tannate to CPM have differential taste masking abilities than that of the pure drug. Published by Elsevier B.V.
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