enkephalin

noun 0.741

met-enkephalin

noun 0.691

prodynorphin

noun 0.663

preproenkephalin

noun 0.648

opiate

noun 0.639

opioid

noun 0.636

epinephrine

noun 0.628

dopamine

noun 0.625

adrenaline

noun 0.617

oxytocin

noun 0.609

serotonin

noun 0.607

euphoriant

noun 0.603

euphoric

noun 0.601

orexin

noun 0.600

norepinephrine

noun 0.598

endophilin

noun 0.586

endothelin

noun 0.585

morphine

noun 0.584

erythropoietin

noun 0.572

octopamine

noun 0.563

opium

noun 0.562

anandamide

noun 0.561

ephedrine

noun 0.555

phenylethylamine

noun 0.553

endocrine

noun 0.548

phenethylamine

noun 0.548

neurotransmitter

noun 0.536

hydroxytryptamine

noun 0.536

pheromone

noun 0.534

neurohormone

noun 0.534

endomorph

noun 0.534

anabolic

noun 0.530

epidural

noun 0.529

catecholamine

noun 0.526

neuropeptide

noun 0.525

epoetin

noun 0.525

insulin

noun 0.524

prohormone

noun 0.524

noradrenaline

noun 0.523

euphoria

noun 0.522

heroin

noun 0.522

adrenaline rush

noun 0.522

anabolic steroid

noun 0.520

diprenorphine

noun 0.520

diamorphine

noun 0.520

endotoxin

noun 0.520

theobromine

noun 0.520

narcotic

noun 0.518

entheogen

noun 0.517

ecstasy

noun 0.517

adiponectin

noun 0.514

aphrodisiac

noun 0.513

adrenochrome

noun 0.513

oxycodone

noun 0.512

cannabinoid

noun 0.512

epoxide

noun 0.512

peptide

noun 0.512

endopeptidase

noun 0.510

incretin

noun 0.509

dopa

noun 0.509

glucagon

noun 0.508

endocrine disruptor

noun 0.508

prostaglandin

noun 0.507

dehydroepiandrosterone

noun 0.507

orexigenic

noun 0.506

endoperoxide

noun 0.506

antidepressant

noun 0.505

naloxone

noun 0.505

tryptamine

noun 0.504

ergometrine

noun 0.504

pethidine

noun 0.502

glutamate

noun 0.501

oxycontin

noun 0.501

adipokine

noun 0.500