title: Brain levels of morphine in mice following removal of a morphine pellet and naloxone challenge: no evidence for displacement.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism*; D004361:Drug Tolerance; D006801:Humans; D008297:Male; D008722:Methods; D051379:Mice; D008813:Mice, Inbred ICR; D009020:Morphine / Q000378:metabolism*; D009021:Morphine Dependence / Q000378:metabolism; D009270:Naloxone / Q000494:pharmacology*; D011863:Radioimmunoassay; D013375:Substance Withdrawal Syndrome / Q000378:metabolism; D013997:Time Factors
chemical_list: D009270:Naloxone; D009020:Morphine