List of products in the National Drug Code with proprietary name . This medication is a man-made antibody (IgG1) used to treat various types of cancer. This drug works by blocking a certain protein (vascular endothelial growth factor-VEGF) thereby decreasing the blood supply to the tumor and slowing tumor growth. This monograph is about the following bevacizumab products: bevacizumab, bevacizumab-awwb, and bevacizumab-bvzr.