This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
Secretion of prolactin is inhibited by: 
Select and explain. 
A. Dopamine, B. Nor-adrenaline, C. Adrenaline, D. Serotonin
A: Dopamine
Answer: A: Dopamine 
Explanation: Dopamine keeps inhibitory control over prolactin.This explains the reason behind hyperprolactinemia in psychotic patients who are treated with dopamine antagonists.Dopamine agonists (bromocriptine, cabergoline) therefore are used in treatment of hyperprolactinemia, acromegaly.