Des-tyrosine-γ-endorphin: H-reflex response similar to neuroleptics

In a study of eight schizophrenic patients, des-tyrosine-γ-endorphin was found to significantly reduce secondary facilitation of the H-reflex recovery curve. This result is similar to the effect found after treatment with classical neuroleptic medication. The effect is different from that produced by lithium carbonate or anti-depressants. This suggests that des-tyrosine-γ-endorphin and neuroleptics have a similar pharmacological action in man.