Avastin Injection is an effective medicine, first-line option when used together with other cancer medicines. It is given as an infusion. That means you get it through a small needle in your vein or through a port, which is a device placed under your skin. The doctor will decide your dose and duration and will check you for signs of an infusion reaction such as high blood pressure and trouble breathing. You keep taking Avastin Injection as long as your disease is controlled and your side effects are manageable. Your doctor will determine whether you should stop taking it or not. You may be advised to check blood pressure and levels of protein in urine while you are taking this medication.