According to the invention there is provided inter aliaa medical device for delivering a paclitaxel to a tissue, the device the device having a coating layer applied to a surface of the device, the coating layer comprising components i), ii) and iii), wherein component i) is a therapeutic agent which is paclitaxel; and component ii) is urea or a pharmaceutically acceptable salt thereof, or a urea derivative or a pharmaceutically acceptable salt thereof; and component iii) is succinic acid,glutaricacidor caffeine, or a pharmaceutically acceptable salt of any one thereof.