Interference of dopamine infusion on γ-amino butyric acid (GABA)-stimulated prolactin increase

Abstract
The effects of simultaneous iv administration of dopamine (DA) and γ-suamino butyric acid (GABA) were evaluated in 5 normal women. After injection of 50 mg GABA alone, PRL plasma concentrations showed a significant (pppin vivo PRL secretion could be due to an inhibitory effect of these drugs on endogenous DA.