Both of these fields are closely connected, since both are concerned with the interactions of neurotransmitters, neuropeptides, neurohormones, neuromodulators, enzymes, second messengers, co-transporters, ion channels, and receptor proteins in the central and peripheral nervous systems.
Ova dva polja su blisko povezana, pošto se oba bave interakcijama neurotransmitera, neuropeptida, neurohormona, neuromodulatora, enzima, sekundarnih glasnika, kotransportera, jonskih kanala, i receptorskih proteina u centralnom i perifernom nervnom sistemu.