Chemotherapy-induced nausea and vomiting(CINV)is the most unpleasant side effect for patients receiving cancer chemotherapy. Moderately emetic anticancer drugs show a wide range of emetic frequencies, and the use or nonuse of antiemetics is optionally described without specifics. In the present study, we clarified the state of CINV presentation caused by moderately emetic anticancer drugs using the MASCC Antiemesis Tool, a nausea-and-vomiting evaluation tool developed by the Multinational Association of Supportive Care in Cancer(MASCC)for patients with colorectal cancer. Of the 32 subjects, 5 (15.6%)had vomiting and 22(68.8%)experienced nausea. The timing of their occurrence and their nausea scores were accurately and easily clarified. This study's findings suggested that the current regimens need to be reviewed, particularly because all patients exhibited late nausea; therefore, we modified our antiemetic regimens through the Cancer Chemotherapy Regimen Review Board of this hospital. After the modification was introduced, significant improvement was seen in the control of both acute and late nausea/vomiting.