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Evidence against involvement of endorphins in sexual arousal and orgasm in man
Archives of General Psychiatry
|October 1, 1977
Abstract:
In a double-blind study, intravenous injection of naloxone, at a dose sufficient to saturate the opiate (endorphin) receptors, had no effect on sexual arousal, penile erection, ejaculation, or orgasm in a human subject. Apparently, endorphins are not involved in these phenomena.