What gear affects prolactin???

I was just curious as to what gear affects prolectin. Is there such thing as prolactin inhibitors??

This is a quote from a research report on GHB and it's affects on the body.

"GHB also stimulates pituitary growth hormone (GH) release. One methodologically rigorous Japanese study reported nine-fold and sixteen-fold increases in growth hormone 30 and 60 minutes respectively after intravenous administration of 2.5 grams of GHB in six healthy men between the ages of twenty-five and forty [Takahara, 1977]. GH levels were still seven-fold higher at 120 minutes. The mechanism by which GHB stimulates growth-hormone release is not known. Dopamine activity in the hypothalamus is known to stimulate pituitary release of growth hormone, but GHB inhibits dopamine release at the same time that it stimulates GH release. This suggests that GHB's GH-releasing effect takes place through an entirely different mechanism [Takahara, 1977]. At the same time GH is being released, prolactin levels also rise. Serum prolactin levels increase in a similar time-dependent manner as GH, peaking at five-fold above baseline at 60 minutes [Takahara, 1977]. This effect, unlike the release of GH, is entirely consistent with GHB's inhibition of dopamine. Other compounds which lessen dopamine activity in the brain (such as the neuroleptic Thorazine) have been shown to result in prolactin release. Although prolactin tends to counteract many of the beneficial effects of GH, the sixteen-fold increases in GH probably overwhelm the five-fold increases in prolactin."

One of my physiology teachers told me that if the prolactin production is inhibited, GHB could potentially be used as a GH inducing drug, at an extremely high rate.

ANy thoughts?