could save your live, here is a quote from last link

http://orthomolecular.org/resources/omns/v12n17.shtml

Robert F. Cathcart, MD, successfully treated pneumonia with up to 200,000 milligrams of vitamin C daily. (1,2) One can, to a significant extent, simulate an IV of vitamin C by taking it by mouth very, very often. When I had pneumonia, it took 2,000 mg of vitamin C every six minutes to get me to saturation (bowel tolerance). In three hours, fever was reduced several degrees and coughing virtually stopped. At an oral daily dose of just over 100,000 mg, complete recovery took just a few days.