The variation in the amount of everolimus estimated by UV-Vis spectrophotometric and HPLC methods was ≤3.5%, and the drug release profiles obtained by both methods were found to be equivalent by evaluation with two-one-sided t-test (two-tailed, p = 0.62; mean of differences, 0.17; 95% CI, 0.62–0.96) and similarity factor
f2 (f2 value, 87).