cytisine

noun 0.627

piracetam

noun 0.625

choline

noun 0.615

vinpocetine

noun 0.606

cilostazol

noun 0.604

carbamylcholine

noun 0.599

nootropic

noun 0.561

clioquinol

noun 0.558

sildenafil citrate

noun 0.555

cytarabine

noun 0.549

citrate

noun 0.546

phosphatidylcholine

noun 0.545

cycloserine

noun 0.545

citalopram

noun 0.544

cidofovir

noun 0.540

roscovitine

noun 0.537

cordycepin

noun 0.535

picolinate

noun 0.534

cytosine

noun 0.534

pyridinol

noun 0.532

pycnogenol

noun 0.532

sodium citrate

noun 0.530

cyclopentolate

noun 0.529

cyclic nucleotide

noun 0.528

cyclizine

noun 0.527

quinuclidine

noun 0.527

pilocarpine

noun 0.523

camptothecin

noun 0.523

ticlopidine

noun 0.522

clopidogrel

noun 0.521

cyclohexylamine

noun 0.520

acetylcysteine

noun 0.520

bicuculline

noun 0.519

cevimeline

noun 0.517

modafinil

noun 0.515

nicotianamine

noun 0.515

cinacalcet

noun 0.514

nicotinamide

noun 0.511

nicotinic acid

noun 0.509

citric acid

noun 0.508

cetylpyridinium chloride

noun 0.508

colistimethate

noun 0.506

psychostimulant

noun 0.504

cyclophane

noun 0.504

chitosan

noun 0.504

zotepine

noun 0.503

cetylpyridinium

noun 0.503

cediranib

noun 0.502

lecithin

noun 0.502

homocitrate

noun 0.502

catechol

noun 0.502

cyclopentanone

noun 0.501

cytochalasin

noun 0.501