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Stability study of azithromycin in ophthalmic preparations / Estudo de estabilidade de azitromicina em preparações oftálmicas
Moreno, Andréia de Haro; Silva, Maria Fernanda Conz da; Salgado, Hérida Regina Nunes.
  • Moreno, Andréia de Haro; University of São Paulo State. School of Pharmaceutical Sciences. Department of Drugs and Medicines. BR
  • Silva, Maria Fernanda Conz da; University of São Paulo State. School of Pharmaceutical Sciences. Department of Drugs and Medicines. BR
  • Salgado, Hérida Regina Nunes; University of São Paulo State. School of Pharmaceutical Sciences. Department of Drugs and Medicines. BR
Braz. j. pharm. sci ; 45(2): 219-226, Apr.-June 2009. ilus, graf, tab
Article in English | LILACS | ID: lil-525898
ABSTRACT
A stability study of azithromycin in ophthalmic preparations was developed by submission to different types of light, temperature and pH, using the biodiffusion assay (cylinder 3 x 3) for the quantifications. Bacillus subtilis, ATCC 9372, was used as test organism. The used concentration range was of 50 to 200 µg/mL. The study demonstrated that the drug suffered degradation when submitted to the ultraviolet light, germicide light, solar luminosity, acid solution, basic solution and hydrogen peroxide solution. The results were analyzed by the analysis of variance (ANOVA).
RESUMO
O estudo de estabilidade de azitromicina em preparações oftálmicas foi realizado após exposição a diferentes tipos de luz, temperatura e pH, utilizando o método de difusão em ágar (cilindros 3 x 3) para as quantificações. A faixa de concentração foi de 50 a 200 µg/mL. O estudo demonstrou que o fármaco sofreu degradação quando submetido às luzes ultravioleta, germicida e solar, e a soluções ácida, alcalina e de peróxido de hidrogênio. Os resultados foram analisados através da análise da variância (ANOVA).
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Ophthalmology / Pharmaceutical Preparations / Azithromycin / Drug Evaluation Type of study: Evaluation studies Language: English Journal: Braz. j. pharm. sci Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo State/BR

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Full text: Available Index: LILACS (Americas) Main subject: Ophthalmology / Pharmaceutical Preparations / Azithromycin / Drug Evaluation Type of study: Evaluation studies Language: English Journal: Braz. j. pharm. sci Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo State/BR