HMGCR x PDE3

This is a randomized, open-label, single & multiple-dose, parallel study to investigate the effect of cilostazol on the disposition of simvastatin & pravastatin in healthy male volunteers

To evaluate the effect of concomitant administration of Probucol and Cilostazol (based on Atorvastatin treatment) on the atherosclerosis related markers (including the thickness of the Achilles tendon) in severe hypercholesterolemia subject, through the observation of the thickness of the Achilles tendon, the thickness of mean carotid intima-media, anti-oxidation biomarkers and serum lipid profile.

The purpose of this study is to evaluate pharmacodynamic drug interaction between cilostazol and statins (simvastatin as a CYP3A substrate and rosuvastatin as a non-CYP3A substrate) in healthy male subjects.