<prompt> Dopamine agonist used in diabetesMetforminBromocriptineCabergolineVanadium salts  <response>: Bromocriptine and cabergoline are dopamine agonists but bromocriptine usage in type 2 diabetes is approved.It has an interesting mechanism of action by inhibiting the dopamine dip that causes in early morning leading to hyperglycemia. Ref: Goodman and Gillman 13th ed 