Related:
Expanding Consciousness
Nootropics ("smart drugs") can be useful for enhancing cognition and consciousness. Below, I've listed a few nootropics. Additional information may be found at the Nootropics Board.
Acetyl L-Carnitine (ALCAR)
Adrafinil
Aniracetam
Deprenyl
Galantamine
Hydergine
Idebenone
Modafinil
Picamilon
Piracetam
Pyritinol
Vasopressin
Vinpocetine
Other items that may be of interest:
Acetylcholinesterase Inhibitors,  nimodopine,  dihydroergicristine,  nicotine,  DHEA,  phenibut,  Centrophenoxine,  Oxiracetam,  Taurine,  Vitamin C,  DMAE,  Gaba,  Choline Bitartrate,  5-HTP,  Alpha GPC,  homozon,  creatine monohydrate,  MSM,  fish oil,  flax oil,  samE,  rhodiola rosea,  ginkgo biloba,  kava kava,  huperzine-a,  phosphadityl serine,  L-theanine,  phosphadityl choline,  Korphedon,  pramiracetam,  sulbutiamine,  Oxiracetam,  Vitamin C,  Gaba,  R-ALA,  L-tyrosine,  MAOI,  psychostimulants,  dopamine,  tryptophan,  5-HT,  acetylcholine, 
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