"Melatonin, in particular
has been shown to interfere with nicotinic receptor firing [3] and the associated release of
dopamine and glutamate. Since melatonin synthesis is often near peak values during the
time when galantamine is consumed for lucid dreaming purposes, a direct competition
can occur between galantamine induced nicotinic stimulation and melatonin induced
nicotinic inhibition. This can interfere with galantamine’s effectiveness."

I have noticed melatonin is in some of the dream pills. By this it should not be at all.

Very interesting reading here:

http://www.advancedld.com/f/Substanc...case_study.pdf