Pemi is Pemetrexed disodium for injection and Bevac is Bevacizumab injection, both of which have a better effect in maintaining the effect of chemotherapy and need to be used according to the doctor’s prescription. Pemetrexed disodium for injection can inhibit cell replication and can be used for malignant pleural mesothelioma and non-small cell lung cancer. Adverse reactions can be seen fatigue, nausea, loss of appetite, anemia, neutropenia, leukopenia, elevated transaminases. It is contraindicated in people with a history of severe allergy to the product. Bevacizumab Injection reduces microvascular growth and has an inhibitory effect on the progression of metastatic disease. It can be used in advanced, recurrent or metastatic non-small cell lung cancer, metastatic colorectal cancer. Adverse reactions to this product can be seen as arterial thromboembolism, gastrointestinal perforation, hemorrhage, hypertension, malaise, fatigue, diarrhea, and abdominal pain. It is contraindicated for those who are allergic to this product. Pemetrexed disodium for injection and Bevac i.e. Bevacizumab injection are used for the maintenance treatment of chemotherapy with good results, but the efficacy of the treatment varies according to the individual’s degree of tolerance to the drug, sensitivity, and the extent of the disease. Specific use should be under medical supervision.