Design and Evaluation of Metoprolol Tartrate Containing Buccal Tablets

Authors

  • D Nagendrakumar Department of Pharmaceutics, S. V. E. Trust?s College of Pharmacy, Humnabad -585 330,Dist.-Bidar, Karnataka
  • S B Shirsand Department of Pharmaceutical Technology, H. K. E. Society?s College of Pharmacy, Gulbarga-585 105, Karnataka
  • MS Para Department of Pharmaceutics, S. V. E. Trust?s College of Pharmacy, Humnabad -585 330, Dist.-Bidar, Karnataka
  • CK Makadia Department of Pharmaceutics, S. V. E. Trust?s College of Pharmacy, Humnabad -585 330, Dist.-Bidar, Karnataka

DOI:

https://doi.org/10.3329/dujps.v10i2.11787

Keywords:

mucoadhesive buccal tablets, metoprolol tartrate, carbopol 934p, sodium carboxy methyl cellulose, sodium alginate, hydroxy propyl methyl cellulose K4M, bioadhesive strength, in vitro dissolution

Abstract

Metoprolol tartrate is a selective ?-1 adrenergic antagonist used in the treatment of the cardiovascular system, especially hypertension. It is readily and completely absorbed from the gastrointestinal tract but is subjected to considerable first- pass metabolism having half-life of 3 to 4 hr. It has 12% oral bioavailability. These physicochemical properties of metoprolol tartrate (undergoing considerable first- pass metabolism, low molecular weight) make it suitable candidate for administration by buccal route. Bilayered buccal tablets of metoprolol tartrate were prepared by direct compression method using combinations of polymers (carbopol 934p along with sodium carboxy methyl cellulose, sodium alginate and hydroxy propyl methyl cellulose K4M), using mannitol as a channeling agent and ethyl cellulose as a backing layer. The tablets were evaluated for physical and biological parameters. Among the 15 formulations, the formulation FA1 containing sodium alginate (34.00% w/w of matrix layer), Carbopol 934p (6.0% w/w of matrix layer) and mannitol (channeling agent, 8.0% w/w of matrix layer) was found to be promising, which showed t25%, t50%, t70% values of 0.42, 2.45, 4.48 hr respectively and in vitro drug release    of 86.04% in 8 hr along with satisfactory bioadhesive strength (5.00±0.10 g). Stability studies on the promising formulations indicated that there are no significant changes in drug content and in vitro dissolution characteristics (p<0.05). Infra-redspectroscopic studies indicated that there are no drug-excipient interactions. The prepared buccal tablets of metoprolol tartrate could stay in the buccal cavity for a longer period of time, which indicate a potential use of mucoadhesive tablets of metoprolol tartrate for treating blood pressure.

 

DOI: http://dx.doi.org/10.3329/dujps.v10i2.11787

 

Dhaka Univ. J. Pharm. Sci. 10(2): 101-108, 2011 (December)

 

 

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Published

2012-09-03

How to Cite

Nagendrakumar, D., Shirsand, S. B., Para, M., & Makadia, C. (2012). Design and Evaluation of Metoprolol Tartrate Containing Buccal Tablets. Dhaka University Journal of Pharmaceutical Sciences, 10(2), 101–108. https://doi.org/10.3329/dujps.v10i2.11787

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