Galantamine is marketed as an Alzheimer treatment, and although me and others are weary of pharmaceuticals (side effects? cancer? higher-morality rates in clinical trials?) drug induced lucid dreams sound very interesting to me. Has anyone on HN experimented with this?
Extremely small doses of Yohimbine (~300mcg) and Mucuna Pruriens are lesser known and quite effective for me. Yohimbine is a norepinephrine agonist and Mucuna Pruriens has L-dopa and can cross the blood-brain barrier. Keep in mind it's much more important to be extremely diligent about writing down your dreams, every night.
Don't pay attention to how galantamine/yohimbine are marketed - do the research yourself.
It does take a bit of practice/getting used to. The apps monitor you heart rate and movement patterns to try and detect REM sleep and send a signal to you. At first these signals will wake you up but with practice you will recognize them in your dreams without waking up.
http://www.wikihow.com/Lucid-Dream
Keeping a dream journal is probably one of the best techniques.