B17 is often used in IV form as a very effective treatment for brain tumors. While you would need to have a doctor administer it anyone with a brain tumor with little hope will seek someone that can do so.
We have a number of people that come through Jesicha's Hope that are seeking help from a brain cancer and B17 is always one option that is recommended by our consulting doctors.
Often it is given with a couple of other IVs in order to kill the cancer, starve it and shrink the inflammation. It is all quiet effective.