although arh stimulation increased lh release after da receptor blockade by d-butaclamol , this effect could not be ascribed to the da antagonist property of this agent , because elevated blood lh levels also occurred during stimulation in rats treated with l-butaclamol , in which da receptors were not blocked . d- and l-butaclamol may possess a non-stereospecific action on a non-dopaminergic event , thus reversing the response to arh stimulation .
C0013030
da
C0282151
dopaminergic