Thanks for the comments. I am also taking a common statin for reducing cholesterol. Would that count as something that could interact with either CDP Choline or Piracetam to product the bloody nose or later the extremely runny note (flood) that turned a little bit pinkish after a couple of days? What do you or anyone else think of these new Nootropic RC's (Wikipedia is friendly toward them): Sunifiram Coluracetam Unifiram Modzi