<prompt> Inhibition of prolactin is caused by: RepeatDopamineDobutamineTRHAT-II  <response>: Ans: A Dopamine Ref: Pal GK, Pituitary Gland: The Anterior Pituitary. In: Textbook of Medical Physiology, Abuja Publishing House, 2007: 44:332Explanation:Regulation of Prolactin SecretionProlaction Increased by:PRFSleep, stress, breast feedingAlso released by TRH and hormones in the glucagon family secretin, glucagon, VIP and gastric inhibitory polypeptide AT-IIOxytocinDopamine antagonist phenothiazineAdrenergic blockersSerotonin agonistsProlactin Decreased by:DopamineSomatostatinProlactinGABA 