The generic name of Merovia is Rituximab Injection, and in general, menstrual vacations do not affect the use of this drug. It is recommended to follow the doctor’s instructions to use the drug, so as not to cause adverse reactions. Rituximab injection is a molecularly targeted drug for the treatment of lymphoma, primarily for the treatment of relapsed or resistant follicular central lymphoma. Patients with previously untreated CD20-positive stage III-IV follicular non-Hodgkin’s lymphoma should be treated in combination with chemotherapy.CD20-positive diffuse large B-cell non-Hodgkin’s lymphoma should be treated in combination with 8 cycles of standard CHOP chemotherapy. The main adverse reactions to this drug are allergic reactions, such as the development of fever, chills and, in severe cases, a drop in blood pressure may occur. The drug is contraindicated in patients with known hypersensitivity to any of the excipients of the drug and to murine proteins. Regular vacation does not usually affect the use of rituximab injection, and it is recommended that the drug be used in strict compliance with the doctor’s instructions to avoid adverse reactions.