The Department of Pharmacy at Osaka Red Cross Hospital, a general hospital, accepts pharmaceutical trainees every year. However, as no one is specifically in charge of training, all of our staff undertake the task of teaching. In order to ensure that teaching is effective and thorough, we prepared a textbook for the trainees' practical training. We also conducted a questionnaire to ascertain how well they understood the various aspects of the training and how useful they thought the textbook was. Responses showed that trainees had a better understanding of almost all of the topics after receiving training in them. Topics for which understanding remained the same were those that had not been covered in introductory lectures at the trainees' universities, which were thus considered to be lacking in certain respects.The results of this questionnaire indicated that the preparation of good teaching plan is essential to ensuring that training is effective and of high quality. We also feel that is important to cooperate more closely with universities so that hospital training for pharmacists can be made even better.