Is 500mg of Niacin (no flush) safe to take after a concussion? I read it can help after brain injuries but im not sure. I can't see my doc until june

See below. There are many claims with very little science to support use of supplements for traumatic brain injury. Please see this peer reviewed article from the National Library of Medicine: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3205506/ There is no support for the use of Niacin.