So I decided I wanted to do some research on oneirogenics.
It looks like they are generally herbal substances that will
increase vividness and recall of dreams. What I couldn't find
are other things these drugs do. What are the possible
negative side-effects if any? Is it bad for your health in any
way? If there are no negative effects, I would like to try a
regimen.

Astral pixels has been experimenting with Xhosa ( Selene Capensis )
I have also looked up information on Calea Zacatechichi. The wiki
page for this says "There are no reports of hangover or other
undesirable side effects."

What do you guys know about these?