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Research Journal of Pharmaceutical Dosage Forms and Technology
ISSN: 0975-4377(Online), 0975-234X(Print)
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Formulation and In-Vitro Evaluation of In-lay Matrix Tablets Containing Telmisartan and Hydrochlorothiazide
Hamid Khan1*, Mushir Ali2, Alka Ahuja2, Javed Ali2
1JK College of Pharmacy, Bilaspur, CG, India-495001
2Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India-110062
The aim of the presented work was formulation and in-vitro evaluation of in-lay tablets containing telmisartan as sustained release outer core and hydrochlorothiazide as immediate release inner core using HPMC and co-polymer carbopol 71G. Tablets were evaluated via various quality control tests and in-vitro drug release studies. Drug release study was carried out hydrochloric acid buffer of pH 1.2 (0.1N) using USP paddle apparatus. The validated HPLC-UV method was applied to determine the amount of drugs released at different time intervals. The mechanism of drug release through polymeric network was established. Prepared tablets showed extended sustain release of telmisartan over a period of 20 h and hydrochlorothiazide as immediate release within 30 min.
In-lay tablet, telmisartan, hydrochlorothiazide, sustained release, immediate release.
Hamid Khan, Mushir Ali, Alka Ahuja, Javed Ali. Formulation and In-Vitro Evaluation of In-lay Matrix Tablets Containing Telmisartan and Hydrochlorothiazide. Res. J. Pharm. Dosage Form. and Tech. 7(3): July-Sept., 2015; Page 193-198.
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