All of the following can cause hypersecretion of prolactin, except?

The function of dopamine is to supress the prolactin secretion. Prolactin agonists reduce secretion of prolactin and antagonists increase the secretion of prolactin. Cabergoline is a long acting dopamine agonist. The drug suppresses prolactin secretion. Used to treat prolactinoma. All others can cause increased secretion. High prolactin levels are also associated with Hypothyroidism.