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  4. Quality evaluation and in vitro interaction studies between levofloxacin 250mg and diclofenac sodium 50mg tablets

Quality evaluation and in vitro interaction studies between levofloxacin 250mg and diclofenac sodium 50mg tablets

Authors

Fayyaz Muhammad
Armed Forces Institute of Pathology ; , Microbiology Department ;

Pak. J. Pharm. Sci. 2015; 28 (1): 119-128
Pakistan Journal of Pharmaceutical Sciences
Journal Country: Pakistan
P-ISSN: 1011-601X
Type of Publication: Journal Article
Type of Research: Non Clinical
Keywords: Levofloxacin / Pharmacology
Board Subjects: Health Systems, Levofloxacin ,therapeutic use ,Diclofenac ,therapeutic use ,Drug Interactions ,In Vitro Techniques ,Levofloxacin ,administration & dosage ,Diclofenac ,administration & dosage ,Fluoroquinolones
Citation: Muhammad Fayyaz , Quality evaluation and in vitro interaction studies between levofloxacin 250mg and diclofenac sodium 50mg tablets, Pak. J. Pharm. Sci. 2015; 28 (1): 119-128

Abstract English

Fluoroquinolones are broad-spectrum antibiotics, work against Gram-positive and Gram-negative bacteria and are a clinically proven option for many resistant infections. Among fluoroquinolones Levofloxacin works best against acute sinusitis, inflammation of the lower airways, acute exacerbation of chronic bronchitis, community acquired pneumonia, complicated urinary tract infection including Pyelonephritis, chronic bacterial prostatitis and skin and soft tissue infection. Levofloxacin is a frequently prescribed antibacterial agent with Diclofenac Sodium for pain management in infectious conditions. The objective of the present work is to evaluate the level of interaction between Levofloxacin and Diclofenac Sodium. In this work market available brands of both drugs were also evaluated for quality. The physiochemical parameters like weight variation, thickness variation, and mechanical strength were determined. Similarly the percentage drug release and content uniformity test were also analyzed; the tested quality attributes were found within the recommended pharmacopeia ranges except brand L6 that had high drug content 124.629 +/- 3.614 while brand L [4] and L [5] were not found similar in pH 1.2. When subjected to model dependent analysis Levofloxacin showed compliance with [first order, Higuchi, Hixson Crowell and Weibull] at pH [1.2, 4.5 and 6.8] . However Diclofenac Sodium showed adherence with [first order, Hixson Crowell and Weibull] at pH [1.2, 4.5 and 6.8] but following Higuchi at pH 1.2 and 4.5 only. The interaction studies were also performed spectrophotometrically and simultaneous equation was used to estimate the percentage availability of both the drugs at pH 4.5, 6.8, FaSSGF and FaSSIF. The studies showed that the percent availability of Levofloxacin was increased significantly in FaSSIF i. e.129.173 +/- 0.323 at 45 minutes in the presence of Diclofenac Sodium

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