The X is a purchasing broker. Somebody asked him for the purchasing of the medicine A and the bondage B. Does the X have any legal responsibility, if he accepts this case and sets up any information about the purchasing on his website? Because of the convenience of the online trading, the purchasing becomes more popular. Nevertheless, who purchases online must be caution that some medicine, which are recommended by bloggers, might be prohibited drugs according to the Pharmaceutical Affairs Law. They are not being approved in Taiwan. Setting up the information about these medicine and expressing the willing of the purchasing might be the element of “will to sell and display” according to the paragraph 83 section 1 Pharmaceutical Affairs Law and be against it as the result.