If you can't make your own neurotransmitters, storebought is fine.
Madness string 21915
I have been mortal, and some part of me is mortal yet. I am full of tears and hunger and the fear of death, though I cannot weep, and I want nothing, and I cannot die. I am not like the others now, for no unicorn was ever born who could regret...
Logic is a pretty powerful tool, but it only works if you give it good input.