preproenkephalin

noun 0.740

enkephalin

noun 0.706

met-enkephalin

noun 0.687

endorphin

noun 0.663

diprenorphine

noun 0.649

neurokinin

noun 0.564

neuropeptide

noun 0.564

deoxypyridinoline

noun 0.562

opioid

noun 0.555

prostanoid

noun 0.547

hydromorphone

noun 0.539

proctolin

noun 0.537

orexin

noun 0.531

neuromedin

noun 0.530

endophilin

noun 0.530

diacetylmorphine

noun 0.530

nandrolone

noun 0.526

oxyntomodulin

noun 0.521

hydroxypregnenolone

noun 0.519

dopamine

noun 0.516

tachykinin

noun 0.516

pregnenolone

noun 0.515

levorphanol

noun 0.514

meperidine

noun 0.514

kynurenine

noun 0.514

endothelin

noun 0.513

neurophysin

noun 0.513

syntrophin

noun 0.513

ryanodine

noun 0.509

dehydroepiandrosterone

noun 0.507

opiate

noun 0.507

oxytocin

noun 0.503

diamorphine

noun 0.502

prohormone

noun 0.501