Keränen, T COMT inhibition by entacapone does not affect growth hormone or prolactin secretion in healthy volunteers. [electronic resource] - Journal of neural transmission (Vienna, Austria : 1996) 1996 - 729-36 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0300-9564 Standard No.: 10.1007/BF01271232 doi Subjects--Topical Terms: AdultAntiparkinson Agents--bloodCatechol O-Methyltransferase InhibitorsCatechols--pharmacologyCross-Over StudiesDopamine--physiologyDouble-Blind MethodEnzyme Inhibitors--pharmacologyHuman Growth Hormone--bloodHumansLevodopa--bloodMaleNitrilesPlacebosProlactin--bloodTyrosine--analogs & derivatives