It is an important task for Drug Administration to utilize information technology to strengthen the management of drug sales end, prevent the flow of expired pharmaceuticals into market, and ensure drug safety of consumers. The paper first put forward the three main functions the information monitoring system at drug sales end (IMSDSE) should have, namely, monitoring and early warning for drugs validity, automatic inventory replenishment and recycling of expired drugs. The paper then analyzes the necessity and feasibility of constructing the IMSDSE based on web service, and the structure and working principle of the web-service –based system. Finally, the paper describes the overall design of IMSDSE from technical perspective.
