 This is a single center open label study to assess the effect of Imrecoxib on the PK of Warfarin in Healthy Volunteers. The goals of this study are as follows: assess the PK of warfarin when administered alone ,and with Imrecoxib ; assess INR of warfarin when administered alone, and with Imrecoxib; to assess the effect of Imrecoxib on the PKPD of warfarin, to assess the safety and tolerability of warfarin administered with Imrecoxib. 