Development and validation of a dissolution test for empagliflozin in film-coated tablets

The present study proposes a validated dissolution method for empagliflozin (EMPA) in film coated tablets. A gradual in vitro dissolution profile for this formulation was obtained using 900 mL of hydrochloric acid 0.01 M at 37 °C ± 0.5 °C as dissolution medium and USP apparatus 2 (paddle) at 50 rpm. The dissolved percentage of EMPA was quantified by ultraviolet spectrophotometric method to obtain cost technique and produce little residual solvents. Validation parameter for dissolution methodology such as the specificity, linearity, accuracy and precision were evaluated according to the international guidelines, giving results within the acceptable range. The method is linear in the range of 1 - 40 µg/mL, precise, with RSD value less than 2.62%, accurate (mean recovery 106.97%) and robust. Therefore, since no official method has been described, the proposed dissolution conditions represent a relevant contribution to evaluate the dissolution profile of coated tablet containing 25 mg of EMPA.