A new, simple and sensitive spectrophotometric method in ultraviolet region has been developed for the determination of rosuvastatin calcium and aspirin in bulk and in pharmaceutical formulations. The drug obeyed the Beer’s law [for rosuvastatin concentration range 2-22μg/ml and for aspirin concentration range2- 22μg/ml] and showed good correlation. 0.1N NaOH was used as a solvent. Sampling wavelength was 244nm for rosuvastatin calcium and 297nm for aspirin. The result of analysis was validated by recovery studies. The method was found to be simple, accurate, precise, economical and robust. In this method, there is no interference from any common pharmaceutical additives and diluents.
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