Spectrophotometric Method for Simultaneous Estimation of Desloratadine and Pseudoephedrine Hydrochloride from Tablets and Dissolution Media

The simple, selective, rapid, precise and economical spectrophotometric method has been developed for simultaneous estimation of Desloratadine and Pseudoephedrine Hydrochloride, from two components solid dosage forms and dissolution media. Dissolution media 0.1N Hydrochloride acid and 0.1M Potassium Phosphate Buffer P^H 7.5 was used. The simultaneous equation method involves the measurement of absorbance at two wavelength 281.5 nm (λ_max of Desloratadine) and 256.5 nm (λ_max of Pseudoephedrine Hydrochloride) in 0.1N Hydrochloride acid. 241.5 nm (λ_max of Desloratadine) and 256.5 nm (λ_max of Pseudoephedrine Hydrochloride) in 0.1M Potassium Phosphate Buffer (PH 7.5). The linearity lies between 2.5-25 μg/ml for Desloratadine and 120-960 μg/ml for Pseudoephedrine Hydrochloride in both media. The developed method was validated in terms of accuracy, precision, Linearity, Limit of detection, Limit of quantitation. The method showed good reproducibility and recovery with % RSD less than 1.5. The methods were found to be rapid, specific, precise and accurate and can be successfully applied for the routine analysis of Desloratadine and Pseudoephedrine Hydrochloride from Tablets and dissolution media.