scopolamine

noun 0.595

nonnarcotic

noun 0.591

codeine

noun 0.587

naloxone

noun 0.563

pentazocine

noun 0.558

naphthalene

noun 0.554

hydrocodone

noun 0.553

oxycodone

noun 0.553

thebaine

noun 0.545

salicylamide

noun 0.541

narcotic

noun 0.537

opiate

noun 0.535

spinosad

noun 0.533

zopiclone

noun 0.531

morphine

noun 0.530

skullcap

noun 0.529

phenacyl

noun 0.528

antispasmodic

noun 0.527

amoxapine

noun 0.527

diprenorphine

noun 0.526

papaverine

noun 0.525

dihydrocodeine

noun 0.524

diacetylmorphine

noun 0.522

phenobarbitone

noun 0.522

ethylmorphine

noun 0.519

clozapine

noun 0.518

dextromethorphan

noun 0.518

secobarbital

noun 0.518

hyoscyamine

noun 0.518

antitussive

noun 0.513

opium

noun 0.513

salicin

noun 0.512

nicotianamine

noun 0.511

oxycontin

noun 0.510

gabapentin

noun 0.510

hexobarbital

noun 0.510

saporin

noun 0.510

pseudoephedrine

noun 0.509

dextropropoxyphene

noun 0.508

pheniramine

noun 0.508

mecamylamine

noun 0.507

metaxalone

noun 0.507

bisabolene

noun 0.507

naphthoflavone

noun 0.507

scapolite

noun 0.506

phenobarbital

noun 0.506

naphthoquinone

noun 0.506

capsaicin

noun 0.505

vinorelbine

noun 0.505

guaifenesin

noun 0.504

swainsonine

noun 0.502

narasin

noun 0.502

naphthene

noun 0.501

strychnine

noun 0.501

camptothecin

noun 0.501