These injections prevent the tumor from growing by preventing the new blood vessels from growing. The infusion of Avastin is a medicine type referred to as a humanized monoclonal antibody.

Avastin is very effective when used with other medicines meant to treat cancer and forms a first-line option in the treatment of the disease. These medicines are administered in the form of an infusion. So, the administration of Avastin is done into the vein with a small needle or through a device which is placed under the skin. The dosage and the duration for which the injection is to be administered is decided by a doctor.