Pharmacokinetic Study of Once Daily PMR Compared to Twice Daily Cilostazol IR Tablets in Healthy Volunteers

Inclusion Criteria: * Must be 18 to 45 years of age, inclusive. * Absence of diseases, such as heart failure, significant kidney impairment or a history of restricted blood flow to the heart, that could affect the study outcomes. * Having a body mass index (BMI) within normal standard limits (18.5\~24.9, inclusive). * Willing and able to give informed consent to participate in the clinical study and comply with all study procedures, restrictions and attend all visits. Exclusion Criteria: * History of bleeding tendency. * Use of anticoagulant agent(s) within 1 month prior to screening. * Use of tobacco or nicotine products within 6 months of screening. * Intake of over the counter or prescription drugs (other than hormonal contraceptives) within 2 weeks prior to randomization. * On any investigational drug(s) or therapeutic device(s) within 30 days preceding screening; or anticipating use of any of these therapies during the course of the study (other than the study products). * History of substance abuse, such as alcohol, IV drugs, and inhaled drugs, within 1 year prior to screening. * Known history of having Acquired Immunodeficiency Syndrome (AIDS) or positive pre-study result of infection with Human Immunodeficiency Virus (HIV); history or positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening. * Pregnant or breast feeding. * Women of child-bearing potential not using an effective birth control method. Women of child-bearing potential are defined as women physiologically capable of becoming pregnant, UNLESS they meet the following criteria: 1. Post-menopausal: 12 months of natural (spontaneous) amenorrhea or less than 12 months of spontaneous amenorrhea with serum Follicle Stimulating Hormone (FSH) levels \> 40IU/L, OR; 2. 6 weeks post-surgical bilateral oophorectomy with or without hysterectomy, OR; 3. Using one or more of the following acceptable methods of contraception: surgical sterilization (e.g. bilateral tubal ligation), hormonal contraception (e.g. implantable, injectable, vaginal patch, and oral), and double-barrier methods. Reliable contraception should be maintained throughout the study and for 7 days after study discontinuation. * Known or suspected hypersensitivity to any ingredient of study drug(s). * Donated blood or lost more than 150 mL of blood within 3 months prior to randomization or plans to donate blood or plasma within 4 weeks after completion of the study.