title: Spin-labeled narcotics.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism / Q000648:ultrastructure; D003061:Codeine / Q000031:analogs & derivatives / Q000138:chemical synthesis / Q000378:metabolism; D004578:Electron Spin Resonance Spectroscopy; D008297:Male; D008722:Methods; D051379:Mice; D009022:Morphine Derivatives / Q000138:chemical synthesis / Q000378:metabolism; D009294:Narcotics / Q000138:chemical synthesis*; D051381:Rats; D013113:Spin Labels / Q000138:chemical synthesis; D013570:Synaptic Membranes / Q000378:metabolism
chemical_list: D009022:Morphine Derivatives; D009294:Narcotics; D013113:Spin Labels; D003061:Codeine