The usage of this medicine is to treat cancer's multiple variants. This injection is also useful for the treatment of eye diseases that are caused by diabetes. But just like any other medicine it also has side effects. The Avastin Cancer Drug Side Effects are Nosebleeds, Headache, High blood pressure, Inflammation of the nose, Protein in urine, Taste change and Dry skin. There are many other severe side effect of this medicine hence it is important to take it with the consultation of the doctor.