Lexikon of Pharmaca

I'm writing on a neuro paper about signal processing atm, and I planned to illustrate the effects that neurotransmitter receptors can have by giving pharmaceutical examples - like medicaments, poisons or drugs.

Now the problem is that I don't have any good compendium or encyclopedia of pharmaca - i really need some help because i dont want to use wikipedia as a source.

Anyone got any tips for me?

I didnt understand any of that

Don't you have like, a library for this sort of thing?