- Prolactin response to the dopamine antagonists sulpiride and domperidone. Further evidence for pituitary dopamine deficiency in hyperprolactinemic disorders of different etiology. Ferrari, C., Scarduelli, C., Rampini, P., Brambilla, G., Benco, R., Pistolesi, E., Paracchi, A., Mattei, A., Boghen, M., Crosignani, P.G. Gynecol. Obstet. Invest. (1983)