<prompt> Neuroleptics cause hyperprolactinemia by blocing the effect of following on pituitary lactotropes-DopamineGlycineAcetylcholineSerotonin  <response>: Ans. is a i.e., Dopamine Neuroleptics consistently increase prolactin release by blocking the inhibitory action of DA on pituitary lactotropes. This may result in galactorrhoea and gynaecomastia. 