however , ym-09151-2 was less effective than haloperidol and chlorpromazine in both augmenting the spindle bursts produced by electrical stimulation of the caudate nucleus and antagonizing the inhibitory effect of l-dopa on the caudate spindle , indicating a smaller effect of ym-09151-2 on the extrapyramidal dopaminergic system than that of the two neuroleptic drugs .
C0018546
haloperidol
C0040615
neuroleptic drugs