Pharmacokinetics and Safety Study of Probucol by Multiple Administration in Healthy Male Subjects

1. Chinese.
2. Gender: Male.
3. Age 20 to 40 years, (at time of informed consent).
4. Body mass index [BMI, body weight (kg) / height (m)2] between 19 and 26 kg/m2, inclusive.
5. Nonsmokers (or former smokers): Urinary cotinine level satisfying the criteria for a nonsmoker established by the trial site (at time of screening examination).
6. Subjects judged by the investigator to be healthy based on the medical history, physical examination, vital signs, 12 lead ECG, the results of serological test (HIV/HCV Ab, HBsAg and Syphilis Ab) and clinical laboratory tests, etc.

Exclusion Criteria:

1. Subjects with hypersensitivity or a history of hypersensitivity to any drug (any prescription or over-the-counter [OTC] drug)

2. Subjects who meet any of the following lipid criteria in the fasting state (at time of screening examination)

   • LDL-C: ≥ 140 mg/dL
   • TC: ≥ 220 mg/dL
   • HDL-C: \< 40 mg/dL

   • TG: ≥ 150 mg/dL

     • LDL-C value will be directly measured or calculated by the Friedewald formula. Friedewald Formula: LDL-C = TC - HDL-C - TG/5 (When TG value is less than 400 mg/dL) LDL-C value will be directly measured when TG value is 400 mg/dL or greater.
3. Subjects with electrocardiogram (ECG) results showing AV block or with both QTc and QRS width outside the standard values of the ECG laboratory (at time of screening examination)
4. Subjects with alcohol or drug dependence or a history of drug abuse
5. Subjects who have a positive result in an infectious disease test or urine drug test (at time of screening examination)

6. Use of any of the following within the specified period prior to scheduled investigational medicinal product (IMP) administration

   • All other prescription and OTC drugs (within 2 weeks prior to scheduled IMP administration)
   • Alcohol and caffeine-containing products (within 1 week prior to scheduled IMP administration)
7. Use of any other investigational drug within 16 weeks prior to scheduled IMP administration in the present trial
8. Plasmapheresis or plateletpheresis within 2 weeks or whole blood collection (blood donation, etc) cumulatively exceeding 200 mL within 4 weeks, 400 mL within 12 weeks, or 1200 mL within 1 year prior to scheduled IMP administration
9. Subjects whose body weight is less than 50 kg (at time of screening examination)
10. Subjects who are scheduled for examination or treatment at any other hospital or clinic during the trial period
11. Subjects otherwise judged by the investigator or sub investigator to be inappropriate for inclusion in the trial