Investigate the PK, Safety, and Tolerability After Single and Multiple Dose Daridorexant in Chinese Healthy Subjects

"25 mg group: Daridorexant group: strength 25 mg, administered at a dose of 25 mg; administered orally under fasting conditions, single dosing on Day1, and daily dosing on Day 4-8.~Placebo control group: administered in the same manner as the test drug.~50 mg group: Daridorexant group: strength 50 mg, administered at a dose of 50 mg; administered orally under fasting conditions, single dosing on Day 1, and daily dosing on Day 4-8.~Placebo control group: administered in the same manner as the test drug.~Drug is to be administered at the same time every day, and the dosing window is recommended to be at 08:00 AM (±1 h) on the dosing day. Drinking water and other liquids should be avoided for 1 hour before and after dosing on the day of blood collection (except the water used to swallow the tablets.)."