Abstract
Specific radioligand binding protocols were utilized to compare the affinity of morphine and the high-potency opioid etonitazene at mu1, mu2, delta, kappa1 and sigma receptors. Both etonitazene and morphine displayed a mu1-selective binding profile; however, etonitazene had a 2500-fold higher affinity at this receptor type. The latter result is consistent with the relative potencies of morphine and etonitazene in various behavioral tests.
Original language | English |
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Pages (from-to) | PL199-PL203 |
Journal | Life Sciences |
Volume | 52 |
Issue number | 18 |
DOIs | |
State | Published - 1993 |
Externally published | Yes |