Author(s): Sonal C. Bankhele, Rupali B. Harale, Monica R P Rao, Madhura V. Dhoka

Email(s): madhura1777@yahoo.com

DOI: Not Available

Address: Sonal C. Bankhele, Rupali B. Harale, Monica R P Rao, Madhura V. Dhoka*
Department of Quality Assurance, AISSMS College of Pharmacy, Near R.T.O, Kennedy Road, Pune - 411001. India.
*Corresponding Author

Published In:   Volume - 2,      Issue - 3,     Year - 2012


ABSTRACT:
In-situ gelling systems are viscous polymer-based liquids that exhibit sol-to-gel phase transition on the ocular surface due to change in a specific physico-chemical parameters like temperature, ionic strength, or pH. A major problem in ocular therapeutics is the attainment of optimal drug concentration at the site of action, which is compromised mainly due to pre-corneal loss resulting in only a small fraction of the drug being ocularly absorbed. The effective dose administered can be altered by increasing the retention time of medication into the eye by using in situ gel forming systems, thereby preventing the tear drainage. The aim of the present investigation is to prepare and evaluate novel Thermo-reversible ocular gelling systems of Levofloxacin Hemihydrate. These gelling systems involve the use of Poloxamer 407(Pluronic F 127) as thermo reversible polymer and HPMC K4M as viscofying agent. A 32 full factorial design has been applied with conc. of Poloxamer 407 and HPMC K4M as independent variables studied at three levels to study their influence on drug release and gelling capacity as dependent variables. The formulations were evaluated for clarity, pH measurement, gelling capacity, drug content estimation, rheological study, in vitro drug release and in-vivo studies in rabbit eye. The developed formulations showed sustained release of drug for upto 8 hrs. The formulations were found to be non-irritating with no ocular damage.


Cite this article:
Sonal C. Bankhele, Rupali B. Harale, Monica R P Rao, Madhura V. Dhoka. Thermoreversible In-Situ Ophthalmic Gelling System of Levofloxacin Hemihydrate: Formulation and Optimization by Factorial Design. Asian J. Pharm. Res. 2(3): July-Sept. 2012; Page 100-106.


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DOI: 10.5958/2231–5691 


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