• RAJESH PAWAR MAEER’s Maharashtra Institute of Pharmacy, MIT Campus, Kothrud, Pune, India.
  • SWATI JAGDALE School of Pharmacy, Dr. Vishwanath Karad MIT World Peace University, MIT Campus, Kothrud, Pune, India
  • DHEERAJ RANDIVE Rajarambapu College of Pharmacy, Sangli, India


Objective: The present study aimed to develop a new SR metformin hydrochloride (MH) gastroretentive formulation with novel excipient (NE), which has better floatation and can be prepared with more simple pharmaceutical techniques for the treatment of diabetes Mellitus.

Methods: A gastro-retentive floating matrix tablet (GFT) formulation of MH was prepared using various concentrations of PEO (Polyox WSR-303) and hydroxypropyl methylcellulose K100M (HPMC K100 M) and Floating agent (novel excipient) to achieve desirable TFT, FLT and drug release. The wet granulation method was selected using isopropyl alcohol as a binder for the preparation of tablets. D-optimal non-simplex mixture design was used for the selection of suitable polymer concentrations and floating agents. Release kinetics was used to determine the mechanism of drug release.

Results: It was observed that GFT with optimum quantities of PEO, HPMC K100M, and the floating agent showed 100 % of drug release in 24h with FT up to 24h and minimum FLT of less than 2 min. Formulation with an in vitro release profile slower to the marketed sample was prepared.

Conclusion: A sustained-release (GFT) of MH tablets using PEO, HPMC K100M, and an effervescent system was successfully prepared. A GFT formulation with an in vitro release profile slower to the marketed sample that releases MH for 24h may suitable for once-daily dosing can be prepared.

Keywords: Novel excipient, Drug release, Floating drug delivery system, Mixture design, HPMC, PEO, Total floating time, Floating lag time, FDDS


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How to Cite
PAWAR, R., S. JAGDALE, and D. RANDIVE. “DEVELOPMENT OF FLOATING GASTRORETENTIVE DRUG DELIVERY SYSTEM BASED ON A NOVEL EXCIPIENT FOR METFORMIN HYDROCHLORIDE USING MIXTURE DESIGN”. International Journal of Pharmacy and Pharmaceutical Sciences, Vol. 12, no. 10, Sept. 2020, pp. 62-71, doi:10.22159/ijpps.2020v12i10.38678.
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