Modulation of μ-mediated antinociception by δ agonists: characterization with antagonists

The effects of morphine- and nalorphine- like drugs in the nondependent and morphine-dependent chronic spinal dog.

W R Martin, C. G. Eades, JP Thompson et al. · Journal of Pharmacology and Experimental Therapeutics · 1976 · 3K citations

Medicine, Pharmacology, Veterinary Pharmacology +16

Endogenous opioid peptides: multiple agonists and receptors

John A.H. Lord, Angela A. Waterfield, John Hughes et al. · Nature · 1977 · 2.5K citations

Medicine, Pharmacology, Neuroendocrinology +9

PHARMACOLOGICAL EFFECTS PRODUCED BY INTRACEREBRAL INJECTION OF DRUGS IN THE CONSCIOUS MOUSE

Thomas J. Haley, WF McCormick · British Journal of Pharmacology and Chemotherapy · 1957 · 1.5K citations · Full text

Medicine, Neuroscience, Pharmacology +12

Multiple opiate receptors. Enkephalins and morphine bind to receptors of different specificity.

K J Chang, Pedro Cuatrecasas · Journal of Biological Chemistry · 1979 · 684 citations · Full text

Medicine, Pharmacology, Neuropharmacology +11

The inhibitory effect of fentanyl and other morphine-like analgesics on the warm water induced tail withdrawl reflex in rats.

Patricia A. Janssen, Niemegeers Cj, Dony Jg · PubMed · 1963 · 525 citations

Medicine, Pharmacology, Behavioral Pharmacology +13