Merovia, Generic Name Rituximab Injection has more side effects, but the exact severity is related to the individual’s constitution. Rituximab Injection is indicated for the treatment of some chronic lymphocytic leukemias (e.g., untreated or relapsed/refractory types) and non-Hodgkin’s lymphomas (patients with follicular lymphoma, diffuse large B-cell non-Hodgkin’s lymphoma). It should be contraindicated in patients who are allergic to the drug or allergic to mouse proteins. Very common adverse reactions to the drug include neutropenia, leukopenia, bacterial or viral infections, angioedema, nausea, fever, chills, itching, rash, weakness, headache, and decreased IgG levels. Septicemia, infectious pneumonia, anemia, thrombocytopenia, myocardial infarction, hypertension, and bronchospasm are common. The drug may lead to the occurrence of serious adverse reactions, such as left ventricular failure, infectious shock, etc., but the occurrence of the situation is related to the individual variability of the user, so it can not be an overall indication of the severity of the drug. Specific use of the drug should be carried out under the guidance of a specialist, and should not be used without authorization.