Abstract: The purpose of setting up an open clinic drugstore is for the convenience between pharmacists and patients communicating face to face and easy to carry out the service work of medication information. The pharmacists find some unreasonable phenomena existent in the patients’ taking medicine during the service work. In this essay, the author summarizes the unreasonable medication reason and the result that may lead to. The corresponding measures are also taken to deal with the pertinent phenomenon to attach importance to each hospital and every pharmacist of sales department.

Key words: open drugstore, communication, medicine use advisory service, unreasonable medicating phenomenon