TY - JOUR T1 - THE ACTION OF MORPHINE, METHADONE, MEPERIDINE AND NALORPHINE ON DORSAL ROOT POTENTIALS OF CAT SPINAL CORD JF - Journal of Pharmacology and Experimental Therapeutics JO - J Pharmacol Exp Ther SP - 210 LP - 213 VL - 134 IS - 2 AU - WILLIAM A. KRIVOY AU - R. A. HUGGINS Y1 - 1961/11/01 UR - http://jpet.aspetjournals.org/content/134/2/210.abstract N2 - By studying the dorsal root potentials of cat spinal cord it was found that morphine, methadone, meperidine and nalorphine inhibit the residual negativity which constitutes the fifth dorsal root potential. In the case of morphine, methadone and meperidine this was antagonized by nalorphine. © 1961, by The Williams & Wilkins Company ER -