title: Methylene blue is dangerous.
mesh_terms: D002559:Cerebrospinal Fluid Rhinorrhea / Q000175:diagnosis*; D006801:Humans; D007278:Injections, Spinal; D008297:Male; D008751:Methylene Blue / Q000009:adverse effects*; D008875:Middle Aged; D010264:Paraplegia / Q000139:chemically induced
chemical_list: D008751:Methylene Blue