Both polymers have a proven track record of use in commercial products. We evaluated both polymers from the perspective of absorption and tablet stability. The dog pharmacokinetic study was conducted using solid dispersion tablets at the dose of 3 mg/kg. The results of the dog pharmacokinetic study are shown in Table and Fig. . According to the AUC, the absorption of solid dispersion tablets was approximately 4 to 6 times greater than that of anhydrous crystal capsules. Moreover, the absorption of HPMCAS solid dispersion tablets was higher than that of PVPVA tablets. This finding aligns with the results of dissolution testing (Fig. ), suggesting that the solubility of the HPMCAS solid dispersion is higher than that of the PVPVA solid dispersion, potentially leading to enhanced absorption.