A Study to Assess Serotonin Transporter Occupancy of Healthy Adults Using 11C-DASB PET

This trial adopts a single-center, non-randomized, open-label design, with a planned enrollment of 16 healthy subjects. The LV232 capsule groups include 6 subjects in the 40 mg dose group, 4 subjects in the 60 mg dose group, and 4 subjects in the 20 mg dose group. Additionally, there are 2 subjects in the escitalopram oxalate tablet (positive control drug) group. Based on the results of the LV232 capsule study, the investigator and sponsor will jointly decide whether to proceed with the positive control group, using escitalopram oxalate tablets at a dose of 20 mg as the positive control drug.