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Preformulation Studies of Glipizide: First Step Towards Developing Stable Osmotic Drug Delivery System


Affiliations
1 Department of Pharmaceutics, School of Pharmacy, Dr. Vishwanath Karad, MIT World Peace University, Pune 411038, Maharashtra,, India
2 2Senior Research Associate, Wockhardt Research Center, Aurangabad, Maharashtra, India
3 Department of Pharmaceutics, Dr. D Y Patil Institute of Pharmaceutical Sciences and Research, Pimpri Pune, 411018, Maharashtra,, India
4 Department of Pharmacognosy, Bharati Vidyapeeth College of Pharmacy, Kolhapur, Maharashtra,, India
     

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Objective: The goal of this research study was to conduct a preformulation analysis of glipizide in order to establish a stable, robust as well as therapeutically effective system. Methods: Glipizide was characterized to determine its flow properties. Solubility was determined in different pH-varying solvents and its purity was determined by infrared spectrum and absorption maxima. Standard UV curve was developed to aid in further analytical research studies. Finally loss on drying (LOD) and drug-excipients compatibility tests were performed. Results: Glipizide has poor flow and compressibility properties (BD 0.222 g/ml, TD 0.425 g/ml, Carr’s index 47.78%, Hauser’s ratio 1.915). Solubility of drug was found to increase with increase in pH. The purity of drug was confirmed by infrared spectrum which showed characteristics peaks and by uv spectroscopy which exhibited maxima at 276 nm. The standard curve obtained was linear with correlation coefficient (R2 =0.998) and equation y = 0.0144x +0.0078. There were no drug excipient interactions which was clear as no visual changes in drug samples were observed with respect to discoloration, liquefaction and odor. Conclusion: The drug candidate under consideration was pure glipizide which had poor flow property suggesting use of granulation technique during tablet manufacturing and it was stable with selected excipient at reported ratio at 40oC / 75 % RH for 4 weeks.

Keywords

Preformulation, Glipizide, Drug characterization, Drug-excipients compatibility studies.
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  • Preformulation Studies of Glipizide: First Step Towards Developing Stable Osmotic Drug Delivery System

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Authors

Manish Wani
Department of Pharmaceutics, School of Pharmacy, Dr. Vishwanath Karad, MIT World Peace University, Pune 411038, Maharashtra,, India
Pradeep Rodge
2Senior Research Associate, Wockhardt Research Center, Aurangabad, Maharashtra, India
Akshay Baheti
Department of Pharmaceutics, School of Pharmacy, Dr. Vishwanath Karad, MIT World Peace University, Pune 411038, Maharashtra,, India
Satish Polshettiwar
Department of Pharmaceutics, School of Pharmacy, Dr. Vishwanath Karad, MIT World Peace University, Pune 411038, Maharashtra,, India
Tanaji Nandgude
Department of Pharmaceutics, Dr. D Y Patil Institute of Pharmaceutical Sciences and Research, Pimpri Pune, 411018, Maharashtra,, India
Firoj Tamboli
Department of Pharmacognosy, Bharati Vidyapeeth College of Pharmacy, Kolhapur, Maharashtra,, India

Abstract


Objective: The goal of this research study was to conduct a preformulation analysis of glipizide in order to establish a stable, robust as well as therapeutically effective system. Methods: Glipizide was characterized to determine its flow properties. Solubility was determined in different pH-varying solvents and its purity was determined by infrared spectrum and absorption maxima. Standard UV curve was developed to aid in further analytical research studies. Finally loss on drying (LOD) and drug-excipients compatibility tests were performed. Results: Glipizide has poor flow and compressibility properties (BD 0.222 g/ml, TD 0.425 g/ml, Carr’s index 47.78%, Hauser’s ratio 1.915). Solubility of drug was found to increase with increase in pH. The purity of drug was confirmed by infrared spectrum which showed characteristics peaks and by uv spectroscopy which exhibited maxima at 276 nm. The standard curve obtained was linear with correlation coefficient (R2 =0.998) and equation y = 0.0144x +0.0078. There were no drug excipient interactions which was clear as no visual changes in drug samples were observed with respect to discoloration, liquefaction and odor. Conclusion: The drug candidate under consideration was pure glipizide which had poor flow property suggesting use of granulation technique during tablet manufacturing and it was stable with selected excipient at reported ratio at 40oC / 75 % RH for 4 weeks.

Keywords


Preformulation, Glipizide, Drug characterization, Drug-excipients compatibility studies.

References