Formulation, Optimization, in vitro and in-vivo evaluation of levofloxacin hemihydrate Floating Tablets



Título del documento: Formulation, Optimization, in vitro and in-vivo evaluation of levofloxacin hemihydrate Floating Tablets
Revista: Brazilian Journal of Pharmaceutical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000452178
ISSN: 1984-8250
Autors: 1
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2
Institucions: 1Bahauddin Zakariya University, Faculty of Pharmacy, Multan, Punjab. Pakistán
2University of the Punjab, College of Pharmacy, Lahore, Punjab. Pakistán
Any:
Volum: 58
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés The objective of the present investigation was to design, optimize and characterize the gastro retentive floating levofloxacin tablets and perform in-vivo evaluation using radiographic imaging. The floating tablets were prepared by using polymers i.e hydroxy propyl methyl cellulose (HPMC-K4M) and carbopol-940 individually and in combination by nonaquous granulation method. All the Formulations were evaluated for swelling index (S.I), floating behavior and in-vitro drug release kinetics. The compatibility study of levofloxacin with other polymers was investigated by FTIR, DSC, TGA and XRD. Results from FTIR and DSC revealed no chemical interaction amongst the formulation components. The optimized formulation (F11) showed floating lag time (FLT), total floating time (TFT) swelling index (S.I) of 60 sec, >16h and approximately 75 %, respectively. Moreover, F11 showed zero order levofloxacin release in simulated gastric fluid over the period of 6 h. X-ray studies showed that total buoyancy time was able to delay the gastric emptying of levofloxacin floating tablets in rabbits for more than 4 hours. In conclusion the optimized formulation (F11) can be used for the sustained delivery of levofloxacin for the treatment of peptic ulcer
Disciplines Química
Paraules clau: Química farmacéutica,
Tabletas flotantes,
Levofloxacina,
Formulaciones farmacéuticas
Keyword: Medicinal chemistry,
Levofloxacin,
Floating tablets,
Pharmaceutical formulations
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