I was in a study at the tail end for a medication that was a blue pill. I know this is a stretch but it caused vivid dreams, about the only negative side affect I can remember. It helped with concentration though.
This was between the years of 2000 and 2007 I'm sure. I know I can get a copy somewhere of the medications I've taken but wanted this information sooner. I know I have bottles for it somewhere that I kept stuff in but I can't find any.