Endocrine effects of domperidone: a peripheral dopamine blocking agent.

In the present study, effects of domperidone, a peripheral dopamine blocking agent, on prolactin and growth hormone were examined to determine whether dopamine regulation of these hormones involved structures external to the blood-brain barrier. A clearcut elevation in prolactin was produced by domperidone. GH response to apomorphine was partially blocked by domperidone.