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Abstract

Simultaneous Estimation of Solifenacin Succinate and Tamsulosin Hydrochloride in Combined Dosage Form by Using First Order Derivative Spectrophotometric Method

Author(s): S. R. Yarraguntla*, T. H. KUMAR, C. Ponnam and K.V. Rao
Department of Pharmaceutical Analysis, Vignan Institute of Pharmaceutical Technology, Duvvada, Visakhapatnam 530046, Andhra Pradesh

Correspondence Address:
Y SRINIVASARAO*, Department of Pharmaceutical Analysis, Vignan Institute of Pharmaceutical Technology, Duvvada, Visakhapatnam 530046, Andhra Pradesh, E-mail: ysrvignan@gmail.com


Using first-order derivative techniques, a simple accurate and precise Ultraviolet spectrophotometric method was developed for the determination of solifenacin succinate and tamsulosin hydrochloride in combined dosage form. Every solifinacin succinate and tamsulosin hydrochloride was scanned in the wavelength region of 200-400 nm for determination of sampling wavelengths and selected sampling wavelengths were selected.

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Sampling wavelengths were chosen at 265 nm (zero crossing of solifinacin succinate) where the absorbance of tamsulosin hydrochloride was important and at 250 nm (zero crossing of tamsulosin hydrochloride) where the absorbance of solifinacin succinate was significant. For solifenacin succinate, linearity ranged from 10 to 100 μg/ml with a correlation coefficient of 0.998 and 2 to 10 μg/ml for the correlation coefficient of tamsulosin hydrochloride is 0.9988. The median recovery was considered to be satisfactory. For the routine study of solifenacin succinate and tamsulosin hydrochloride in combined dosage forms, the approach proposed can be applied.

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