phenobarbital

noun 0.917

pentobarbital

noun 0.839

hexobarbital

noun 0.787

barbiturate

noun 0.769

mephobarbital

noun 0.726

secobarbital

noun 0.710

thiopental

noun 0.672

sodium thiopental

noun 0.653

barbituric acid

noun 0.637

pentothal

noun 0.614

phenytoin

noun 0.610

carbamazepine

noun 0.610

nitrazepam

noun 0.607

fosphenytoin

noun 0.587

butalbital

noun 0.586

felbamate

noun 0.584

mephenytoin

noun 0.581

zopiclone

noun 0.576

sodium amytal

noun 0.575

phenylbutazone

noun 0.574

bromazepam

noun 0.573

midazolam

noun 0.570

salbutamol

noun 0.563

paracetamol

noun 0.560

pregabalin

noun 0.559

temazepam

noun 0.558

diazepam

noun 0.557

benzodiazepine

noun 0.556

propofol

noun 0.555

flunitrazepam

noun 0.554

codeine

noun 0.553

oxyphenbutazone

noun 0.547

zolpidem

noun 0.546

chlordiazepoxide

noun 0.545

pethidine

noun 0.545

prednisolone

noun 0.543

hydrocodone

noun 0.540

lorazepam

noun 0.537

phenylpropanolamine

noun 0.537

phenoxide

noun 0.533

dihydrocodeine

noun 0.532

fenoprofen

noun 0.532

morphine

noun 0.530

theophylline

noun 0.530

butorphanol

noun 0.528

felodipine

noun 0.528

topiramate

noun 0.526

piperonyl butoxide

noun 0.526

tolbutamide

noun 0.526

chlorpromazine

noun 0.525

sleeping tablet

noun 0.525

gabapentin

noun 0.524

laudanum

noun 0.522

noscapine

noun 0.522

sedative

noun 0.520

phosmet

noun 0.519

piracetam

noun 0.519

antipyrine

noun 0.519

methaqualone

noun 0.518

levothyroxine

noun 0.518

meprobamate

noun 0.518

modafinil

noun 0.518

diphenhydramine

noun 0.517

sulpiride

noun 0.517

terbutaline

noun 0.516

thiabendazole

noun 0.515

butyrophenone

noun 0.515

pheniramine

noun 0.515

fenitrothion

noun 0.515

phenprocoumon

noun 0.514

propranolol

noun 0.513

acetaminophen

noun 0.512

aminophylline

noun 0.512

triazolam

noun 0.512

dextropropoxyphene

noun 0.512

sodium benzoate

noun 0.511

barium nitrate

noun 0.511

henbane

noun 0.511

pirbuterol

noun 0.510

methadone

noun 0.510

phenmetrazine

noun 0.509

anticonvulsant

noun 0.509

nitrofurantoin

noun 0.509

baclofen

noun 0.509

anticonvulsive

noun 0.508

sleeping pill

noun 0.508

fenamiphos

noun 0.508

stibogluconate

noun 0.508

oxprenolol

noun 0.508

diamorphine

noun 0.507

bromophenyl

noun 0.507

diprenorphine

noun 0.507

lamotrigine

noun 0.506

tramadol

noun 0.506

levorphanol

noun 0.505

theobromine

noun 0.505

propenal

noun 0.505

propoxur

noun 0.505

benzphetamine

noun 0.504

procainamide

noun 0.504