Welcome, Vavavoom! Glad to see some older and wiser people join the community, we could always use more insight! Considering you're a nurse, you probably know a lot about neurochemistry, so I'd suggest that a good place to start is at "Neuroscience and Pharmacology Discussion", which can be found at "http://bluelight.org/vb/forums/155-Neuroscience-and-Pharmacology-Discussion".
I hope you find the help you need and I hope that Bluelight effectively serves its main purpose and helps you to reduce harm! Hope to see you around sometime!