Abstract
The effect of reserpine, α-methyl-dl-m-tyrosine (α-MT) and p-chlorophenylalanine (p-ClPhe) pretreatment on meperidine analgesia has been studied by various methods in male mice. The ED50 of meperidine was significantly increased by all methods when the animals were pretreated with reserpine. α-methyl-mtyrosine significantly increased the ED50 of meperidine only by the clip method. P-chlorophenylalanine pretreatment significantly increased the ED50 of meperidine by the clip (both in acute and chronic treatments) and shock methods (only after chronic treatment). Possible explanations for the different findings are discussed.
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Sethy, V.H., Pradhan, R.J., Mandrekar, S.S. et al. Role of brain amines in the analgesic action of meperidine hydrochloride. Psychopharmacologia 17, 320–326 (1970). https://doi.org/10.1007/BF00404237
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DOI: https://doi.org/10.1007/BF00404237