Research ArticleBEHAVIORAL PHARMACOLOGY
Potency Differences ford-Phe-Cys-Tyr-d-Trp-Arg-Thr-Pen-Thr-NH2as an Antagonist of Peptide and Alkaloid μ-Agonists in an Antinociception Assay
Steven N. Sterious and Ellen A. Walker
Journal of Pharmacology and Experimental Therapeutics January 2003, 304 (1) 301-309; DOI: https://doi.org/10.1124/jpet.102.042093