As respects, organic chemistry course topics in highschool books and preuniversity chemistry have been deleted or briefly discussed, in spite of hard and muchtopics, students get into trouble of passing organic chemistry courses in second and third terms. This problem is caused that students can not be passed the basic sciences exams and also it causes educational backwardness and psychological effects. According to importance of organic chemistry courses for basic different pharmacy courses such as medicinal chemistry, pharmaceutical analysis, organic chemistry and so on, we decided to add preliminary organic chemistry as a new course in first term (2 course) for new beginner students. It can be solved their related problems. For this purpose, the scores of organic chemistry 1 and 2 courses in second and third terms with median, average and T-Test is evaluated and investigated.