<prompt> Prolactin secretion is inhibited by:Dopamine antagonistGABANeurophysinBromocripitine  <response>: Ans. is d i.e. BromocriptineRef. K.D.T. 4thep244, K.D.T 5thep217Prolactin is under predominant inhibitory control of hypothalamus through prolactin releasing inhibitory hormone PRIH.PRIH is a dopamine that acts on pituitary lactotrope D2 receptor.So, Dopaminergic agonists decrease plasma prolactin levels. These agonists are :DopamineBromocriptineApomorphineDopaminergic antagonists and DA depletes will increase prolactin levelDopaminergic antagonists are :ChlorpromazineHaloperidolMetoclopramideDopamine depletes are :Reserpine Methyl dopaUses of Bromocriptine are :HyperprolactinemiaAcromegalyParkinsonism Hepatic comaSuppression of lactation and breast engorgement after delivery. 