Oral administration of uncoated tablet (TH-Lac) reduced the maximum concentration (Cmax) from 21.15 ± 1.99 to 14.79 ± 1.36 µg/mL. Oral administration of coated tablet (TH-Lac-A50) further reduced the maximum concentration to 8.93 ± 1.91 µg/mL, and the time to reach Cmax was postponed from 3.40 ± 0.55 to 13.60 ± 1.67 hr. The mean residence time (MRT) was prolonged from 11.25 ± 1.47 to 15.65 ± 1.72 hr after oral administration of coated tablets, but there was no significant difference in AUC between coated and uncoated tablets.