The CHOP regimen is a commonly used chemotherapy regimen for the treatment of non-Hodgkin’s lymphoma. Where C stands for cyclophosphamide, H stands for adriamycin, O stands for vincristine, and P stands for prednisone. Drugs in the CHOP regimen: the drugs in the CHOP regimen include four drugs: cyclophosphamide, adriamycin, vincristine, and prednisone. Cyclophosphamide, adriamycin, and vincristine are intravenous drugs, while prednisone is an oral drug. The order of administration is cyclophosphamide, adriamycin, vincristine, and finally prednisone. The main side effects of this regimen of treatment are nausea and vomiting. However, the side effects are inconsistent from one drug to another, for example, cyclophosphamide can cause patients to develop hemorrhagic cystitis. Adriamycin is cardiotoxic to patients. Vincristine can cause patients to develop peripheral neuritis. For patients diagnosed with malignant lymphoma, they should go to the relevant departments of regular hospitals as soon as possible, and under the guidance of professional physicians, so as not to delay the condition and lead to adverse consequences.