Research Article | Volume: 5, Issue: 12, December, 2015
Research Article | Volume: 5, Issue: 12, December, 2015
Tobramycin, is a water soluble aminoglycoside antibiotic produced by the fungus Streptomyces tenebrarius and used in a variety of pharmaceutical applications including ophthalmic solutions, suspensions and ointments; inhalation solutions and intravenous administration. There are commercially available eye drops formulations in the Argentinian market that have different conservation conditions. We formulated six eye drops solutions, studied their stability at 2-8°C, 25°C, and 40°C, 75% RH and quantified using USP method. Only half of the formulations studied were found to be stable for two years at ambient temperature which is their expected expiry date and only one for three years in the same condition. One system was unstable in the three conservation conditions studied, including appearance and pH.
Cátedra de Calidad de Medicamentos, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, CONICET, Junín 956, 1113 Buenos Aires, Argentina.
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